231313013012 has 6 divisors (see below), whose sum is σ = 404797772778. Its totient is φ = 115656506504.

The previous prime is 231313012979. The next prime is 231313013023. The reversal of 231313013012 is 210310313132.

It can be written as a sum of positive squares in only one way, i.e., 229705484176 + 1607528836 = 479276^2 + 40094^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28914126623 + ... + 28914126630.

It is an arithmetic number, because the mean of its divisors is an integer number (67466295463).

Almost surely, 2^231313013012 is an apocalyptic number.

It is an amenable number.

231313013012 is a deficient number, since it is larger than the sum of its proper divisors (173484759766).

231313013012 is a wasteful number, since it uses less digits than its factorization.

231313013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57828253257 (or 57828253255 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231313013012 its reverse (210310313132), we get a palindrome (441623326144).

The spelling of 231313013012 in words is "two hundred thirty-one billion, three hundred thirteen million, thirteen thousand, twelve".