31312323323211 has 16 divisors (see below), whose sum is σ = 47714519780864. Its totient is φ = 17892567451584.

The previous prime is 31312323323161. The next prime is 31312323323227. The reversal of 31312323323211 is 11232332321313.

It is not a de Polignac number, because 31312323323211 - 2⁶ = 31312323323147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31312323325211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5813146 + ... + 9819231.

It is an arithmetic number, because the mean of its divisors is an integer number (2982157486304).

Almost surely, 2^{31312323323211} is an apocalyptic number.

31312323323211 is a deficient number, since it is larger than the sum of its proper divisors (16402196457653).

31312323323211 is a wasteful number, since it uses less digits than its factorization.

31312323323211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15727770.

The product of its digits is 11664, while the sum is 30.

Adding to 31312323323211 its reverse (11232332321313), we get a palindrome (42544655644524).

The spelling of 31312323323211 in words is "thirty-one trillion, three hundred twelve billion, three hundred twenty-three million, three hundred twenty-three thousand, two hundred eleven".