231011213323312 has 40 divisors (see below), whose sum is σ = 449542862102880. Its totient is φ = 115000235235840.

The previous prime is 231011213323301. The next prime is 231011213323321. The reversal of 231011213323312 is 213323312110132.

It is a super-2 number, since 2×231011213323312² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41992362 + ... + 47173942.

It is an arithmetic number, because the mean of its divisors is an integer number (11238571552572).

Almost surely, 2^{231011213323312} is an apocalyptic number.

It is an amenable number.

231011213323312 is a deficient number, since it is larger than the sum of its proper divisors (218531648779568).

231011213323312 is a wasteful number, since it uses less digits than its factorization.

231011213323312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5193781 (or 5193775 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 231011213323312 its reverse (213323312110132), we get a palindrome (444334525433444).

The spelling of 231011213323312 in words is "two hundred thirty-one trillion, eleven billion, two hundred thirteen million, three hundred twenty-three thousand, three hundred twelve".