231312300031233 has 20 divisors (see below), whose sum is σ = 345628677520368. Its totient is φ = 154168891065720.

The previous prime is 231312300031151. The next prime is 231312300031237. The reversal of 231312300031233 is 332130003213132.

231312300031233 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 12 + 300 + 0 + 312 + 33 = 666.

It is not a de Polignac number, because 231312300031233 - 2²⁵ = 231312266476801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 231312300031197 and 231312300031206.

It is not an unprimeable number, because it can be changed into a prime (231312300031237) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 363652083 + ... + 364287608.

Almost surely, 2^{231312300031233} is an apocalyptic number.

It is an amenable number.

231312300031233 is a deficient number, since it is larger than the sum of its proper divisors (114316377489135).

231312300031233 is an equidigital number, since it uses as much as digits as its factorization.

231312300031233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727943626 (or 727943617 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 231312300031233 its reverse (332130003213132), we get a palindrome (563442303244365).

The spelling of 231312300031233 in words is "two hundred thirty-one trillion, three hundred twelve billion, three hundred million, thirty-one thousand, two hundred thirty-three".