31513050402104 has 16 divisors (see below), whose sum is σ = 59091692493120. Its totient is φ = 15755265737280.

The previous prime is 31513050402059. The next prime is 31513050402139. The reversal of 31513050402104 is 40120405031513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157326629 + ... + 157526804.

It is an arithmetic number, because the mean of its divisors is an integer number (3693230780820).

Almost surely, 2^{31513050402104} is an apocalyptic number.

It is an amenable number.

31513050402104 is a deficient number, since it is larger than the sum of its proper divisors (27578642091016).

31513050402104 is a wasteful number, since it uses less digits than its factorization.

31513050402104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314865950 (or 314865946 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 31513050402104 its reverse (40120405031513), we get a palindrome (71633455433617).

The spelling of 31513050402104 in words is "thirty-one trillion, five hundred thirteen billion, fifty million, four hundred two thousand, one hundred four".