131032242314221 has 6 divisors (see below), whose sum is σ = 135706400780522. Its totient is φ = 126513889130160.

The previous prime is 131032242314161. The next prime is 131032242314261. The reversal of 131032242314221 is 122413242230131.

It can be written as a sum of positive squares in 3 ways, for example, as 1302762000996 + 129729480313225 = 1141386^2 + 11389885^2 .

It is not a de Polignac number, because 131032242314221 - 2²⁷ = 131032108096493 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 (131032242314261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77902640250 + ... + 77902641931.

Almost surely, 2^{131032242314221} is an apocalyptic number.

It is an amenable number.

131032242314221 is a deficient number, since it is larger than the sum of its proper divisors (4674158466301).

131032242314221 is an equidigital number, since it uses as much as digits as its factorization.

131032242314221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155805282239 (or 155805282210 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 131032242314221 its reverse (122413242230131), we get a palindrome (253445484544352).

The spelling of 131032242314221 in words is "one hundred thirty-one trillion, thirty-two billion, two hundred forty-two million, three hundred fourteen thousand, two hundred twenty-one".