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12230311121232 = 2431913410428861
BaseRepresentation
bin1011000111111001011101…
…0110011001000101010000
31121022012120102002021202120
42301332113112121011100
53100340134121334412
642002305524414240
72401416340154241
oct261762726310520
947265512067676
1012230311121232
11399593386a016
121456396547380
136a940c696949
14303d43574cc8
15163212477b8c
hexb1f97599150

12230311121232 has 40 divisors (see below), whose sum is σ = 33257863577760. Its totient is φ = 3862203511680.

The previous prime is 12230311121153. The next prime is 12230311121233. The reversal of 12230311121232 is 23212111303221.

12230311121232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122303111212322 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230311121233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6705213519 + ... + 6705215342.

It is an arithmetic number, because the mean of its divisors is an integer number (831446589444).

Almost surely, 212230311121232 is an apocalyptic number.

12230311121232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12230311121232 is an abundant number, since it is smaller than the sum of its proper divisors (21027552456528).

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

12230311121232 is a wasteful number, since it uses less digits than its factorization.

12230311121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13410428891 (or 13410428885 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12230311121232 its reverse (23212111303221), we get a palindrome (35442422424453).

The spelling of 12230311121232 in words is "twelve trillion, two hundred thirty billion, three hundred eleven million, one hundred twenty-one thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 13410428861 26820857722 40231286583 53641715444 80462573166 107283430888 160925146332 214566861776 254798148359 321850292664 509596296718 643700585328 764394445077 1019192593436 1528788890154 2038385186872 3057577780308 4076770373744 6115155560616 12230311121232