31013132102993 has 8 divisors (see below), whose sum is σ = 31043437861800. Its totient is φ = 30982836677760.

The previous prime is 31013132102983. The next prime is 31013132102999. The reversal of 31013132102993 is 39920123131013.

It can be written as a sum of positive squares in 4 ways, for example, as 11664192122944 + 19348939980049 = 3415288^2 + 4398743^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 31013132102993 - 2¹⁰ = 31013132101969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31013132102999) 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, 3428771 + ... + 8589687.

It is an arithmetic number, because the mean of its divisors is an integer number (3880429732725).

Almost surely, 2^{31013132102993} is an apocalyptic number.

It is an amenable number.

31013132102993 is a deficient number, since it is larger than the sum of its proper divisors (30305758807).

31013132102993 is a wasteful number, since it uses less digits than its factorization.

31013132102993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166787.

The product of its (nonzero) digits is 26244, while the sum is 38.

The spelling of 31013132102993 in words is "thirty-one trillion, thirteen billion, one hundred thirty-two million, one hundred two thousand, nine hundred ninety-three".