31711642377383 has 4 divisors (see below), whose sum is σ = 31711654440768. Its totient is φ = 31711630314000.

The previous prime is 31711642377353. The next prime is 31711642377421. The reversal of 31711642377383 is 38377324611713.

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 not a de Polignac number, because 31711642377383 - 2¹² = 31711642373287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31711642377353) 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, 225566 + ... + 7967067.

It is an arithmetic number, because the mean of its divisors is an integer number (7927913610192).

Almost surely, 2^{31711642377383} is an apocalyptic number.

31711642377383 is a deficient number, since it is larger than the sum of its proper divisors (12063385).

31711642377383 is an equidigital number, since it uses as much as digits as its factorization.

31711642377383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12063384.

The product of its digits is 10668672, while the sum is 56.

The spelling of 31711642377383 in words is "thirty-one trillion, seven hundred eleven billion, six hundred forty-two million, three hundred seventy-seven thousand, three hundred eighty-three".