13211125884 has 72 divisors (see below), whose sum is σ = 38573681328. Its totient is φ = 3767877120.

The previous prime is 13211125883. The next prime is 13211125937. The reversal of 13211125884 is 48852111231.

It is a happy number.

13211125884 is a `hidden beast` number, since 1 + 321 + 1 + 1 + 258 + 84 = 666.

13211125884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211125883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 974487 + ... + 987950.

It is an arithmetic number, because the mean of its divisors is an integer number (535745574).

Almost surely, 2^13211125884 is an apocalyptic number.

It is an amenable number.

13211125884 is an abundant number, since it is smaller than the sum of its proper divisors (25362555444).

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

13211125884 is a wasteful number, since it uses less digits than its factorization.

13211125884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962475 (or 1962470 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The spelling of 13211125884 in words is "thirteen billion, two hundred eleven million, one hundred twenty-five thousand, eight hundred eighty-four".