12311294681 has 8 divisors (see below), whose sum is σ = 14071315200. Its totient is φ = 10551590208.

The previous prime is 12311294657. The next prime is 12311294713. The reversal of 12311294681 is 18649211321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12311294681 is a prime.

It is a super-2 number, since 2×12311294681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12311299681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11360 + ... + 157326.

It is an arithmetic number, because the mean of its divisors is an integer number (1758914400).

Almost surely, 2^12311294681 is an apocalyptic number.

It is an amenable number.

12311294681 is a deficient number, since it is larger than the sum of its proper divisors (1760020519).

12311294681 is a wasteful number, since it uses less digits than its factorization.

12311294681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158023.

The product of its digits is 20736, while the sum is 38.

The spelling of 12311294681 in words is "twelve billion, three hundred eleven million, two hundred ninety-four thousand, six hundred eighty-one".