31339104920073 has 6 divisors (see below), whose sum is σ = 45267595995674. Its totient is φ = 20892736613376.

The previous prime is 31339104919931. The next prime is 31339104920129. The reversal of 31339104920073 is 37002940193313.

31339104920073 is a `hidden beast` number, since 3 + 1 + 3 + 3 + 91 + 0 + 492 + 0 + 0 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31183323145209 + 155781774864 = 5584203^2 + 394692^2 .

It is not a de Polignac number, because 31339104920073 - 2⁸ = 31339104919817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31339104924073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1741061384440 + ... + 1741061384457.

Almost surely, 2^{31339104920073} is an apocalyptic number.

It is an amenable number.

31339104920073 is a deficient number, since it is larger than the sum of its proper divisors (13928491075601).

31339104920073 is a wasteful number, since it uses less digits than its factorization.

31339104920073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482122768903 (or 3482122768900 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The spelling of 31339104920073 in words is "thirty-one trillion, three hundred thirty-nine billion, one hundred four million, nine hundred twenty thousand, seventy-three".