31233223011213 has 48 divisors (see below), whose sum is σ = 45919288396800. Its totient is φ = 20451403631520.

The previous prime is 31233223011181. The next prime is 31233223011227. The reversal of 31233223011213 is 31211032233213.

31233223011213 is a `hidden beast` number, since 3 + 1 + 2 + 332 + 2 + 301 + 1 + 21 + 3 = 666.

It is not a de Polignac number, because 31233223011213 - 2⁵ = 31233223011181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233223011013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5519209578 + ... + 5519215236.

It is an arithmetic number, because the mean of its divisors is an integer number (956651841600).

Almost surely, 2^{31233223011213} is an apocalyptic number.

It is an amenable number.

31233223011213 is a deficient number, since it is larger than the sum of its proper divisors (14686065385587).

31233223011213 is a wasteful number, since it uses less digits than its factorization.

31233223011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12942 (or 12939 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31233223011213 its reverse (31211032233213), we get a palindrome (62444255244426).

The spelling of 31233223011213 in words is "thirty-one trillion, two hundred thirty-three billion, two hundred twenty-three million, eleven thousand, two hundred thirteen".