31044320023 has 4 divisors (see below), whose sum is σ = 31044692008. Its totient is φ = 31043948040.

The previous prime is 31044319991. The next prime is 31044320071. The reversal of 31044320023 is 32002344013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31044320023 - 2⁵ = 31044319991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31044319976 and 31044320003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31044326023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3640 + ... + 249202.

It is an arithmetic number, because the mean of its divisors is an integer number (7761173002).

Almost surely, 2^31044320023 is an apocalyptic number.

31044320023 is a deficient number, since it is larger than the sum of its proper divisors (371985).

31044320023 is a wasteful number, since it uses less digits than its factorization.

31044320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371984.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 31044320023 its reverse (32002344013), we get a palindrome (63046664036).

The spelling of 31044320023 in words is "thirty-one billion, forty-four million, three hundred twenty thousand, twenty-three".