12313021519 has 2 divisors, whose sum is σ = 12313021520. Its totient is φ = 12313021518.

The previous prime is 12313021481. The next prime is 12313021541. The reversal of 12313021519 is 91512031321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12313021519 is a prime.

It is a super-2 number, since 2×12313021519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12313021219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156510759 + 6156510760.

It is an arithmetic number, because the mean of its divisors is an integer number (6156510760).

Almost surely, 2^12313021519 is an apocalyptic number.

12313021519 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313021519 is an equidigital number, since it uses as much as digits as its factorization.

12313021519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 12313021519 in words is "twelve billion, three hundred thirteen million, twenty-one thousand, five hundred nineteen".