31923138583 has 16 divisors (see below), whose sum is σ = 36551264256. Its totient is φ = 27311993280.

The previous prime is 31923138551. The next prime is 31923138593. The reversal of 31923138583 is 38583132913.

It is a cyclic number.

It is not a de Polignac number, because 31923138583 - 2⁵ = 31923138551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31923138593) 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, 16016635 + ... + 16018627.

It is an arithmetic number, because the mean of its divisors is an integer number (2284454016).

Almost surely, 2^31923138583 is an apocalyptic number.

31923138583 is a deficient number, since it is larger than the sum of its proper divisors (4628125673).

31923138583 is a wasteful number, since it uses less digits than its factorization.

31923138583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094.

The product of its digits is 466560, while the sum is 46.

The spelling of 31923138583 in words is "thirty-one billion, nine hundred twenty-three million, one hundred thirty-eight thousand, five hundred eighty-three".