131132322021 has 16 divisors (see below), whose sum is σ = 184272926400. Its totient is φ = 82718011008.

The previous prime is 131132322001. The next prime is 131132322089. The reversal of 131132322021 is 120223231131.

It is not a de Polignac number, because 131132322021 - 2¹⁹ = 131131797733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131132322001) 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, 1375746 + ... + 1467971.

It is an arithmetic number, because the mean of its divisors is an integer number (11517057900).

Almost surely, 2^131132322021 is an apocalyptic number.

It is an amenable number.

131132322021 is a deficient number, since it is larger than the sum of its proper divisors (53140604379).

131132322021 is a wasteful number, since it uses less digits than its factorization.

131132322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844548.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131132322021 its reverse (120223231131), we get a palindrome (251355553152).

The spelling of 131132322021 in words is "one hundred thirty-one billion, one hundred thirty-two million, three hundred twenty-two thousand, twenty-one".