31793811319 has 2 divisors, whose sum is σ = 31793811320. Its totient is φ = 31793811318.

The previous prime is 31793811307. The next prime is 31793811353. The reversal of 31793811319 is 91311839713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31793811319 - 2²⁵ = 31760256887 is a prime.

It is a super-2 number, since 2×31793811319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31793811359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15896905659 + 15896905660.

It is an arithmetic number, because the mean of its divisors is an integer number (15896905660).

Almost surely, 2^31793811319 is an apocalyptic number.

31793811319 is a deficient number, since it is larger than the sum of its proper divisors (1).

31793811319 is an equidigital number, since it uses as much as digits as its factorization.

31793811319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 46.

The spelling of 31793811319 in words is "thirty-one billion, seven hundred ninety-three million, eight hundred eleven thousand, three hundred nineteen".