12931551801 has 32 divisors (see below), whose sum is σ = 21919937280. Its totient is φ = 7380937728.

The previous prime is 12931551797. The next prime is 12931551817. The reversal of 12931551801 is 10815513921.

12931551801 is a `hidden beast` number, since 1 + 29 + 3 + 1 + 551 + 80 + 1 = 666.

It is not a de Polignac number, because 12931551801 - 2² = 12931551797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12931551821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126745 + ... + 204761.

It is an arithmetic number, because the mean of its divisors is an integer number (684998040).

Almost surely, 2^12931551801 is an apocalyptic number.

It is an amenable number.

12931551801 is a deficient number, since it is larger than the sum of its proper divisors (8988385479).

12931551801 is an equidigital number, since it uses as much as digits as its factorization.

12931551801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78910 (or 78904 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 36.

The spelling of 12931551801 in words is "twelve billion, nine hundred thirty-one million, five hundred fifty-one thousand, eight hundred one".