21132322310 has 64 divisors (see below), whose sum is σ = 43765989120. Its totient is φ = 7265738880.

The previous prime is 21132322261. The next prime is 21132322357. The reversal of 21132322310 is 1322323112.

It is a super-2 number, since 2×21132322310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1083404 + ... + 1102736.

It is an arithmetic number, because the mean of its divisors is an integer number (683843580).

Almost surely, 2^21132322310 is an apocalyptic number.

21132322310 is an abundant number, since it is smaller than the sum of its proper divisors (22633666810).

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

21132322310 is a wasteful number, since it uses less digits than its factorization.

21132322310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19893.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21132322310 its reverse (1322323112), we get a palindrome (22454645422).

The spelling of 21132322310 in words is "twenty-one billion, one hundred thirty-two million, three hundred twenty-two thousand, three hundred ten".