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12321031632330 = 2351922694229279
BaseRepresentation
bin1011001101001011011010…
…1101101011010111001010
31121121212201212201202022010
42303102312231223113022
53103331433044213310
642112112004040350
72411110435610241
oct263226655532712
947555655652263
1012321031632330
113a20358169823
12146ba946930b6
136b4b3985a245
143084ac029958
15165771bc9320
hexb34b6b6b5ca

12321031632330 has 96 divisors (see below), whose sum is σ = 31324754419200. Its totient is φ = 3101109634944.

The previous prime is 12321031632317. The next prime is 12321031632337. The reversal of 12321031632330 is 3323613012321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12321031632337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 798631 + ... + 5027909.

It is an arithmetic number, because the mean of its divisors is an integer number (326299525200).

Almost surely, 212321031632330 is an apocalyptic number.

12321031632330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12321031632330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15662377209600).

12321031632330 is an abundant number, since it is smaller than the sum of its proper divisors (19003722786870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12321031632330 is a wasteful number, since it uses less digits than its factorization.

12321031632330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229596 (or 4229577 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 12321031632330 its reverse (3323613012321), we get a palindrome (15644644644651).

The spelling of 12321031632330 in words is "twelve trillion, three hundred twenty-one billion, thirty-one million, six hundred thirty-two thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 269 285 361 538 570 722 807 1083 1345 1614 1805 2166 2690 3610 4035 5111 5415 8070 10222 10830 15333 25555 30666 51110 76665 97109 153330 194218 291327 485545 582654 971090 1456635 2913270 4229279 8458558 12687837 21146395 25375674 42292790 63439185 80356301 126878370 160712602 241068903 401781505 482137806 803563010 1137676051 1205344515 1526769719 2275352102 2410689030 3053539438 3413028153 4580309157 5688380255 6826056306 7633848595 9160618314 11376760510 15267697190 17065140765 21615844969 22901545785 34130281530 43231689938 45803091570 64847534907 108079224845 129695069814 216158449690 324237674535 410701054411 648475349070 821402108822 1232103163233 2053505272055 2464206326466 4107010544110 6160515816165 12321031632330