21232500360 has 32 divisors (see below), whose sum is σ = 63697501440. Its totient is φ = 5662000064.

The previous prime is 21232500313. The next prime is 21232500389. The reversal of 21232500360 is 6300523212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21232500360.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 88468632 + ... + 88468871.

It is an arithmetic number, because the mean of its divisors is an integer number (1990546920).

Almost surely, 2^21232500360 is an apocalyptic number.

21232500360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21232500360 is an abundant number, since it is smaller than the sum of its proper divisors (42465001080).

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

21232500360 is a wasteful number, since it uses less digits than its factorization.

21232500360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176937517 (or 176937513 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The spelling of 21232500360 in words is "twenty-one billion, two hundred thirty-two million, five hundred thousand, three hundred sixty".