21130300032 has 64 divisors (see below), whose sum is σ = 56672391360. Its totient is φ = 6975037440.

The previous prime is 21130300003. The next prime is 21130300043. The reversal of 21130300032 is 23000303112.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 21130299984 and 21130300020.

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, 227569 + ... + 306672.

It is an arithmetic number, because the mean of its divisors is an integer number (885506115).

Almost surely, 2^21130300032 is an apocalyptic number.

It is an amenable number.

21130300032 is an abundant number, since it is smaller than the sum of its proper divisors (35542091328).

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

21130300032 is a wasteful number, since it uses less digits than its factorization.

21130300032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534361 (or 534349 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21130300032 its reverse (23000303112), we get a palindrome (44130603144).

The spelling of 21130300032 in words is "twenty-one billion, one hundred thirty million, three hundred thousand, thirty-two".