20131132322021 has 16 divisors (see below), whose sum is σ = 23016178944000. Its totient is φ = 17248379129520.

The previous prime is 20131132322017. The next prime is 20131132322051. The reversal of 20131132322021 is 12022323113102.

It is not a de Polignac number, because 20131132322021 - 2² = 20131132322017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131132322011) 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, 570803030 + ... + 570838296.

It is an arithmetic number, because the mean of its divisors is an integer number (1438511184000).

Almost surely, 2^{20131132322021} is an apocalyptic number.

It is an amenable number.

20131132322021 is a deficient number, since it is larger than the sum of its proper divisors (2885046621979).

20131132322021 is a wasteful number, since it uses less digits than its factorization.

20131132322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65464.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20131132322021 its reverse (12022323113102), we get a palindrome (32153455435123).

The spelling of 20131132322021 in words is "twenty trillion, one hundred thirty-one billion, one hundred thirty-two million, three hundred twenty-two thousand, twenty-one".