13121365124 has 12 divisors (see below), whose sum is σ = 26242730304. Its totient is φ = 5623442184.

The previous prime is 13121365111. The next prime is 13121365181. The reversal of 13121365124 is 42156312131.

13121365124 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234310064 + ... + 234310119.

It is an arithmetic number, because the mean of its divisors is an integer number (2186894192).

Almost surely, 2^13121365124 is an apocalyptic number.

13121365124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13121365124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121365124 is a wasteful number, since it uses less digits than its factorization.

13121365124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468620194 (or 468620192 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

Adding to 13121365124 its reverse (42156312131), we get a palindrome (55277677255).

The spelling of 13121365124 in words is "thirteen billion, one hundred twenty-one million, three hundred sixty-five thousand, one hundred twenty-four".