12311517017 has 4 divisors (see below), whose sum is σ = 12314979840. Its totient is φ = 12308054196.

The previous prime is 12311517013. The next prime is 12311517047. The reversal of 12311517017 is 71071511321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12311517017 - 2² = 12311517013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311517013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1726073 + ... + 1733190.

It is an arithmetic number, because the mean of its divisors is an integer number (3078744960).

Almost surely, 2^12311517017 is an apocalyptic number.

It is an amenable number.

12311517017 is a deficient number, since it is larger than the sum of its proper divisors (3462823).

12311517017 is an equidigital number, since it uses as much as digits as its factorization.

12311517017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462822.

The product of its (nonzero) digits is 1470, while the sum is 29.

The spelling of 12311517017 in words is "twelve billion, three hundred eleven million, five hundred seventeen thousand, seventeen".