31914136823 has 4 divisors (see below), whose sum is σ = 32272722720. Its totient is φ = 31555550928.

The previous prime is 31914136811. The next prime is 31914136871. The reversal of 31914136823 is 32863141913.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31914136823 - 2⁶ = 31914136759 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 (31914136123) 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, 179292815 + ... + 179292992.

It is an arithmetic number, because the mean of its divisors is an integer number (8068180680).

Almost surely, 2^31914136823 is an apocalyptic number.

31914136823 is a deficient number, since it is larger than the sum of its proper divisors (358585897).

31914136823 is an equidigital number, since it uses as much as digits as its factorization.

31914136823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358585896.

The product of its digits is 93312, while the sum is 41.

The spelling of 31914136823 in words is "thirty-one billion, nine hundred fourteen million, one hundred thirty-six thousand, eight hundred twenty-three".