13002121320 has 32 divisors (see below), whose sum is σ = 39006364320. Its totient is φ = 3467232320.

The previous prime is 13002121309. The next prime is 13002121331. The reversal of 13002121320 is 2312120031.

It is an interprime number because it is at equal distance from previous prime (13002121309) and next prime (13002121331).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13002121320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54175386 + ... + 54175625.

It is an arithmetic number, because the mean of its divisors is an integer number (1218948885).

Almost surely, 2^13002121320 is an apocalyptic number.

13002121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13002121320 is an abundant number, since it is smaller than the sum of its proper divisors (26004243000).

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

13002121320 is a wasteful number, since it uses less digits than its factorization.

13002121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108351025 (or 108351021 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13002121320 its reverse (2312120031), we get a palindrome (15314241351).

The spelling of 13002121320 in words is "thirteen billion, two million, one hundred twenty-one thousand, three hundred twenty".