231113012 has 24 divisors (see below), whose sum is σ = 435998472. Its totient is φ = 106560000.

The previous prime is 231112997. The next prime is 231113033. The reversal of 231113012 is 210311132.

It can be written as a sum of positive squares in 4 ways, for example, as 7431076 + 223681936 = 2726^2 + 14956^2 .

It is a congruent number.

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, 75512 + ... + 78512.

It is an arithmetic number, because the mean of its divisors is an integer number (18166603).

Almost surely, 2^231113012 is an apocalyptic number.

It is an amenable number.

231113012 is a deficient number, since it is larger than the sum of its proper divisors (204885460).

231113012 is a wasteful number, since it uses less digits than its factorization.

231113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499 (or 4497 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 231113012 is about 15202.4015208124. The cubic root of 231113012 is about 613.6792879959.

Adding to 231113012 its reverse (210311132), we get a palindrome (441424144).

The spelling of 231113012 in words is "two hundred thirty-one million, one hundred thirteen thousand, twelve".