31352061713 has 4 divisors (see below), whose sum is σ = 35830927680. Its totient is φ = 26873195748.

The previous prime is 31352061679. The next prime is 31352061809. The reversal of 31352061713 is 31716025313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-31352061713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31352061713.

It is not an unprimeable number, because it can be changed into a prime (31352061313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239432973 + ... + 2239432986.

It is an arithmetic number, because the mean of its divisors is an integer number (8957731920).

Almost surely, 2^31352061713 is an apocalyptic number.

It is an amenable number.

31352061713 is a deficient number, since it is larger than the sum of its proper divisors (4478865967).

31352061713 is an equidigital number, since it uses as much as digits as its factorization.

31352061713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478865966.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 31352061713 in words is "thirty-one billion, three hundred fifty-two million, sixty-one thousand, seven hundred thirteen".