231012130312 has 48 divisors (see below), whose sum is σ = 448880423940. Its totient is φ = 111453119232.

The previous prime is 231012130247. The next prime is 231012130313. The reversal of 231012130312 is 213031210132.

231012130312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 37424450116 + 193587680196 = 193454^2 + 439986^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231012130312.

It is not an unprimeable number, because it can be changed into a prime (231012130313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11649718 + ... + 11669530.

Almost surely, 2^231012130312 is an apocalyptic number.

It is an amenable number.

231012130312 is a deficient number, since it is larger than the sum of its proper divisors (217868293628).

231012130312 is a wasteful number, since it uses less digits than its factorization.

231012130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21610 (or 21577 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231012130312 its reverse (213031210132), we get a palindrome (444043340444).

The spelling of 231012130312 in words is "two hundred thirty-one billion, twelve million, one hundred thirty thousand, three hundred twelve".