31004404023 has 8 divisors (see below), whose sum is σ = 41400633328. Its totient is φ = 20638888704.

The previous prime is 31004404001. The next prime is 31004404031. The reversal of 31004404023 is 32040440013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31004404023 - 2¹⁴ = 31004387639 is a prime.

It is a super-2 number, since 2×31004404023² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31004406023) 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, 7676140 + ... + 7680177.

It is an arithmetic number, because the mean of its divisors is an integer number (5175079166).

Almost surely, 2^31004404023 is an apocalyptic number.

31004404023 is a deficient number, since it is larger than the sum of its proper divisors (10396229305).

31004404023 is a wasteful number, since it uses less digits than its factorization.

31004404023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15356993.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 31004404023 its reverse (32040440013), we get a palindrome (63044844036).

The spelling of 31004404023 in words is "thirty-one billion, four million, four hundred four thousand, twenty-three".