21132310003 has 16 divisors (see below), whose sum is σ = 25600195584. Its totient is φ = 17029031040.

The previous prime is 21132309997. The next prime is 21132310019. The reversal of 21132310003 is 30001323112.

It is a de Polignac number, because none of the positive numbers 2^k-21132310003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21132310033) 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, 10038 + ... + 205828.

It is an arithmetic number, because the mean of its divisors is an integer number (1600012224).

Almost surely, 2^21132310003 is an apocalyptic number.

21132310003 is a deficient number, since it is larger than the sum of its proper divisors (4467885581).

21132310003 is a wasteful number, since it uses less digits than its factorization.

21132310003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196722.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21132310003 its reverse (30001323112), we get a palindrome (51133633115).

The spelling of 21132310003 in words is "twenty-one billion, one hundred thirty-two million, three hundred ten thousand, three".