31348931699 has 4 divisors (see below), whose sum is σ = 31349304864. Its totient is φ = 31348558536.

The previous prime is 31348931659. The next prime is 31348931707. The reversal of 31348931699 is 99613984313.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31348931699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31348931609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009 + ... + 250445.

It is an arithmetic number, because the mean of its divisors is an integer number (7837326216).

Almost surely, 2^31348931699 is an apocalyptic number.

31348931699 is a deficient number, since it is larger than the sum of its proper divisors (373165).

31348931699 is a wasteful number, since it uses less digits than its factorization.

31348931699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373164.

The product of its digits is 3779136, while the sum is 56.

The spelling of 31348931699 in words is "thirty-one billion, three hundred forty-eight million, nine hundred thirty-one thousand, six hundred ninety-nine".