21132010004 has 48 divisors (see below), whose sum is σ = 44773723008. Its totient is φ = 8519344128.

The previous prime is 21132009929. The next prime is 21132010019. The reversal of 21132010004 is 40001023112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980852 + ... + 1002164.

It is an arithmetic number, because the mean of its divisors is an integer number (932785896).

Almost surely, 2^21132010004 is an apocalyptic number.

It is an amenable number.

21132010004 is an abundant number, since it is smaller than the sum of its proper divisors (23641713004).

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

21132010004 is a wasteful number, since it uses less digits than its factorization.

21132010004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23424 (or 23422 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21132010004 its reverse (40001023112), we get a palindrome (61133033116).

The spelling of 21132010004 in words is "twenty-one billion, one hundred thirty-two million, ten thousand, four".