31130203319 has 2 divisors, whose sum is σ = 31130203320. Its totient is φ = 31130203318.

The previous prime is 31130203303. The next prime is 31130203343. The reversal of 31130203319 is 91330203113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31130203319 - 2⁴ = 31130203303 is a prime.

It is a super-2 number, since 2×31130203319² (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 (31130203219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565101659 + 15565101660.

It is an arithmetic number, because the mean of its divisors is an integer number (15565101660).

Almost surely, 2^31130203319 is an apocalyptic number.

31130203319 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130203319 is an equidigital number, since it uses as much as digits as its factorization.

31130203319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 31130203319 in words is "thirty-one billion, one hundred thirty million, two hundred three thousand, three hundred nineteen".