13020251208 has 64 divisors (see below), whose sum is σ = 32823336000. Its totient is φ = 4303798272.

The previous prime is 13020251203. The next prime is 13020251219. The reversal of 13020251208 is 80215202031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13020251203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3764616 + ... + 3768072.

It is an arithmetic number, because the mean of its divisors is an integer number (512864625).

Almost surely, 2^13020251208 is an apocalyptic number.

It is an amenable number.

13020251208 is an abundant number, since it is smaller than the sum of its proper divisors (19803084792).

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

13020251208 is a wasteful number, since it uses less digits than its factorization.

13020251208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734 (or 4730 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 13020251208 its reverse (80215202031), we get a palindrome (93235453239).

The spelling of 13020251208 in words is "thirteen billion, twenty million, two hundred fifty-one thousand, two hundred eight".