31112404319 has 2 divisors, whose sum is σ = 31112404320. Its totient is φ = 31112404318.

The previous prime is 31112404291. The next prime is 31112404339. The reversal of 31112404319 is 91340421113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31112404319 - 2²⁸ = 30843968863 is a prime.

It is a super-2 number, since 2×31112404319² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31112404291 and 31112404300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31112404339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556202159 + 15556202160.

It is an arithmetic number, because the mean of its divisors is an integer number (15556202160).

Almost surely, 2^31112404319 is an apocalyptic number.

31112404319 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112404319 is an equidigital number, since it uses as much as digits as its factorization.

31112404319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 31112404319 in words is "thirty-one billion, one hundred twelve million, four hundred four thousand, three hundred nineteen".