21132110031 has 8 divisors (see below), whose sum is σ = 28179479040. Its totient is φ = 14086407192.

The previous prime is 21132110011. The next prime is 21132110059. The reversal of 21132110031 is 13001123112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21132110031 - 2⁷ = 21132109903 is a prime.

It is a super-2 number, since 2×21132110031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132110011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386641 + ... + 437898.

It is an arithmetic number, because the mean of its divisors is an integer number (3522434880).

Almost surely, 2^21132110031 is an apocalyptic number.

21132110031 is a deficient number, since it is larger than the sum of its proper divisors (7047369009).

21132110031 is an equidigital number, since it uses as much as digits as its factorization.

21132110031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833085.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21132110031 its reverse (13001123112), we get a palindrome (34133233143).

The spelling of 21132110031 in words is "twenty-one billion, one hundred thirty-two million, one hundred ten thousand, thirty-one".