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12303231310331 = 1317499111564589
BaseRepresentation
bin1011001100001001000110…
…1110110101100111111011
31121120011210100021200222222
42303002101232311213323
53103034004203412311
642100005413234255
72406610353431603
oct263022156654773
947504710250888
1012303231310331
113a1385336a405
12146854733298b
136b3260b00530
1430769dd39c03
1516507e114adb
hexb3091bb59fb

12303231310331 has 16 divisors (see below), whose sum is σ = 14057138340000. Its totient is φ = 10667359646208.

The previous prime is 12303231310309. The next prime is 12303231310339. The reversal of 12303231310331 is 13301313230321.

It is a cyclic number.

It is not a de Polignac number, because 12303231310331 - 26 = 12303231310267 is a prime.

It is a super-2 number, since 2×123032313103312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12303231310331.

It is not an unprimeable number, because it can be changed into a prime (12303231310339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55672016 + ... + 55892573.

It is an arithmetic number, because the mean of its divisors is an integer number (878571146250).

Almost surely, 212303231310331 is an apocalyptic number.

12303231310331 is a deficient number, since it is larger than the sum of its proper divisors (1753907029669).

12303231310331 is a wasteful number, since it uses less digits than its factorization.

12303231310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111565118.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 12303231310331 its reverse (13301313230321), we get a palindrome (25604544540652).

The spelling of 12303231310331 in words is "twelve trillion, three hundred three billion, two hundred thirty-one million, three hundred ten thousand, three hundred thirty-one".

Divisors: 1 13 17 221 499 6487 8483 110279 111564589 1450339657 1896598013 24655774169 55670729911 723719488843 946402408487 12303231310331