131032224021 has 16 divisors (see below), whose sum is σ = 176715057024. Its totient is φ = 86357753664.

The previous prime is 131032224019. The next prime is 131032224073. The reversal of 131032224021 is 120422230131.

It is not a de Polignac number, because 131032224021 - 2¹ = 131032224019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131032224091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613305 + ... + 798878.

It is an arithmetic number, because the mean of its divisors is an integer number (11044691064).

Almost surely, 2^131032224021 is an apocalyptic number.

It is an amenable number.

131032224021 is a deficient number, since it is larger than the sum of its proper divisors (45682833003).

131032224021 is a wasteful number, since it uses less digits than its factorization.

131032224021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412540.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 131032224021 its reverse (120422230131), we get a palindrome (251454454152).

The spelling of 131032224021 in words is "one hundred thirty-one billion, thirty-two million, two hundred twenty-four thousand, twenty-one".