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12031322232 = 233501305093
BaseRepresentation
bin10110011010001111…
…10110100001111000
31011001111001111101010
423031013312201320
5144120004302412
65305504553520
7604101360126
oct131507664170
934044044333
1012031322232
115114405516
1223b93228a0
1311997b05a7
14821c52916
154a63ab33c
hex2cd1f6878

12031322232 has 16 divisors (see below), whose sum is σ = 30078305640. Its totient is φ = 4010440736.

The previous prime is 12031322231. The next prime is 12031322309. The reversal of 12031322232 is 23222313021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12031322199 and 12031322208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031322231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250652523 + ... + 250652570.

Almost surely, 212031322232 is an apocalyptic number.

12031322232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12031322232 is an abundant number, since it is smaller than the sum of its proper divisors (18046983408).

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

12031322232 is a wasteful number, since it uses less digits than its factorization.

12031322232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501305102 (or 501305098 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12031322232 its reverse (23222313021), we get a palindrome (35253635253).

The spelling of 12031322232 in words is "twelve billion, thirty-one million, three hundred twenty-two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 501305093 1002610186 1503915279 2005220372 3007830558 4010440744 6015661116 12031322232