31102042023 has 24 divisors (see below), whose sum is σ = 48469501808. Its totient is φ = 19104688512.

The previous prime is 31102042021. The next prime is 31102042033. The reversal of 31102042023 is 32024020113.

It is not a de Polignac number, because 31102042023 - 2¹ = 31102042021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31102041987 and 31102042005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102042021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178990 + ... + 306987.

Almost surely, 2^31102042023 is an apocalyptic number.

31102042023 is a deficient number, since it is larger than the sum of its proper divisors (17367459785).

31102042023 is a wasteful number, since it uses less digits than its factorization.

31102042023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486543 (or 486540 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31102042023 its reverse (32024020113), we get a palindrome (63126062136).

The spelling of 31102042023 in words is "thirty-one billion, one hundred two million, forty-two thousand, twenty-three".