31211311312323 has 8 divisors (see below), whose sum is σ = 46238979722000. Its totient is φ = 20807540874864.

The previous prime is 31211311312309. The next prime is 31211311312331. The reversal of 31211311312323 is 32321311311213.

31211311312323 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 1 + 311 + 312 + 32 + 3 = 666.

It is not a de Polignac number, because 31211311312323 - 2¹⁴ = 31211311295939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1155974493049 = 31211311312323 / (3 + 1 + 2 + 1 + 1 + 3 + 1 + 1 + 3 + 1 + 2 + 3 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31211311312373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577987246498 + ... + 577987246551.

It is an arithmetic number, because the mean of its divisors is an integer number (5779872465250).

Almost surely, 2^{31211311312323} is an apocalyptic number.

31211311312323 is a deficient number, since it is larger than the sum of its proper divisors (15027668409677).

31211311312323 is a wasteful number, since it uses less digits than its factorization.

31211311312323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155974493058 (or 1155974493052 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

Adding to 31211311312323 its reverse (32321311311213), we get a palindrome (63532622623536).

The spelling of 31211311312323 in words is "thirty-one trillion, two hundred eleven billion, three hundred eleven million, three hundred twelve thousand, three hundred twenty-three".