31311103133223 has 12 divisors (see below), whose sum is σ = 45278485132608. Its totient is φ = 20850375142080.

The previous prime is 31311103133209. The next prime is 31311103133231. The reversal of 31311103133223 is 32233130111313.

31311103133223 is a `hidden beast` number, since 3 + 1 + 3 + 11 + 10 + 313 + 322 + 3 = 666.

It is not a de Polignac number, because 31311103133223 - 2²² = 31311098938919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311103133203) 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 11 ways as a sum of consecutive naturals, for example, 1974459415 + ... + 1974475272.

It is an arithmetic number, because the mean of its divisors is an integer number (3773207094384).

Almost surely, 2^{31311103133223} is an apocalyptic number.

31311103133223 is a deficient number, since it is larger than the sum of its proper divisors (13967381999385).

31311103133223 is a wasteful number, since it uses less digits than its factorization.

31311103133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948935574 (or 3948935571 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 31311103133223 its reverse (32233130111313), we get a palindrome (63544233244536).

The spelling of 31311103133223 in words is "thirty-one trillion, three hundred eleven billion, one hundred three million, one hundred thirty-three thousand, two hundred twenty-three".