12015868031 has 2 divisors, whose sum is σ = 12015868032. Its totient is φ = 12015868030.

The previous prime is 12015868021. The next prime is 12015868037. The reversal of 12015868031 is 13086851021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12015868031 - 2²² = 12011673727 is a prime.

It is a super-2 number, since 2×12015868031² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12015867982 and 12015868000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12015868037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6007934015 + 6007934016.

It is an arithmetic number, because the mean of its divisors is an integer number (6007934016).

Almost surely, 2^12015868031 is an apocalyptic number.

12015868031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12015868031 is an equidigital number, since it uses as much as digits as its factorization.

12015868031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 12015868031 in words is "twelve billion, fifteen million, eight hundred sixty-eight thousand, thirty-one".