231023012 has 12 divisors (see below), whose sum is σ = 441044016. Its totient is φ = 105010440.

The previous prime is 231023011. The next prime is 231023021. The reversal of 231023012 is 210320132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231023011) 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, 2625218 + ... + 2625305.

It is an arithmetic number, because the mean of its divisors is an integer number (36753668).

Almost surely, 2^231023012 is an apocalyptic number.

231023012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231023012 is a deficient number, since it is larger than the sum of its proper divisors (210021004).

231023012 is a wasteful number, since it uses less digits than its factorization.

231023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250538 (or 5250536 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 231023012 is about 15199.4411739379. The cubic root of 231023012 is about 613.5996180163.

Adding to 231023012 its reverse (210320132), we get a palindrome (441343144).

The spelling of 231023012 in words is "two hundred thirty-one million, twenty-three thousand, twelve".