13112020305251 has 8 divisors (see below), whose sum is σ = 15008327066880. Its totient is φ = 11221503794568.

The previous prime is 13112020305247. The next prime is 13112020305277. The reversal of 13112020305251 is 15250302021131.

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

It is a cyclic number.

It is not a de Polignac number, because 13112020305251 - 2² = 13112020305247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13112020305251.

It is not an unprimeable number, because it can be changed into a prime (13112020305551) 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, 1447557881 + ... + 1447566938.

It is an arithmetic number, because the mean of its divisors is an integer number (1876040883360).

Almost surely, 2^{13112020305251} is an apocalyptic number.

13112020305251 is a deficient number, since it is larger than the sum of its proper divisors (1896306761629).

13112020305251 is an equidigital number, since it uses as much as digits as its factorization.

13112020305251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895125473.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 13112020305251 its reverse (15250302021131), we get a palindrome (28362322326382).

The spelling of 13112020305251 in words is "thirteen trillion, one hundred twelve billion, twenty million, three hundred five thousand, two hundred fifty-one".