12311517047 has 2 divisors, whose sum is σ = 12311517048. Its totient is φ = 12311517046.

The previous prime is 12311517013. The next prime is 12311517067. The reversal of 12311517047 is 74071511321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12311517047 - 2²² = 12307322743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311517067) 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, 6155758523 + 6155758524.

It is an arithmetic number, because the mean of its divisors is an integer number (6155758524).

Almost surely, 2^12311517047 is an apocalyptic number.

12311517047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311517047 is an equidigital number, since it uses as much as digits as its factorization.

12311517047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

The spelling of 12311517047 in words is "twelve billion, three hundred eleven million, five hundred seventeen thousand, forty-seven".