251231012412232 has 32 divisors (see below), whose sum is σ = 491664363321600. Its totient is φ = 120123302770944.

The previous prime is 251231012412151. The next prime is 251231012412251. The reversal of 251231012412232 is 232214210132152.

It is a junction number, because it is equal to n+sod(n) for n = 251231012412194 and 251231012412203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173479713 + ... + 174921904.

It is an arithmetic number, because the mean of its divisors is an integer number (15364511353800).

Almost surely, 2^{251231012412232} is an apocalyptic number.

It is an amenable number.

251231012412232 is a deficient number, since it is larger than the sum of its proper divisors (240433350909368).

251231012412232 is a wasteful number, since it uses less digits than its factorization.

251231012412232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348405565 (or 348405561 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 251231012412232 its reverse (232214210132152), we get a palindrome (483445222544384).

The spelling of 251231012412232 in words is "two hundred fifty-one trillion, two hundred thirty-one billion, twelve million, four hundred twelve thousand, two hundred thirty-two".