31048385013 has 48 divisors (see below), whose sum is σ = 50015721600. Its totient is φ = 18444672000.

The previous prime is 31048384981. The next prime is 31048385029. The reversal of 31048385013 is 31058384013.

It is not a de Polignac number, because 31048385013 - 2⁵ = 31048384981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31048385033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8722128 + ... + 8725686.

It is an arithmetic number, because the mean of its divisors is an integer number (1041994200).

Almost surely, 2^31048385013 is an apocalyptic number.

It is an amenable number.

31048385013 is a deficient number, since it is larger than the sum of its proper divisors (18967336587).

31048385013 is a wasteful number, since it uses less digits than its factorization.

31048385013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602 (or 6599 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 31048385013 in words is "thirty-one billion, forty-eight million, three hundred eighty-five thousand, thirteen".