131321021330122 has 32 divisors (see below), whose sum is σ = 218451402992592. Its totient is φ = 58813501123584.

The previous prime is 131321021330113. The next prime is 131321021330131. The reversal of 131321021330122 is 221033120123131.

It is an interprime number because it is at equal distance from previous prime (131321021330113) and next prime (131321021330131).

It can be written as a sum of positive squares in 8 ways, for example, as 89334651793401 + 41986369536721 = 9451701^2 + 6479689^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182628223 + ... + 183345874.

Almost surely, 2^{131321021330122} is an apocalyptic number.

131321021330122 is a deficient number, since it is larger than the sum of its proper divisors (87130381662470).

131321021330122 is a wasteful number, since it uses less digits than its factorization.

131321021330122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365974522.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 131321021330122 its reverse (221033120123131), we get a palindrome (352354141453253).

The spelling of 131321021330122 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, twenty-one million, three hundred thirty thousand, one hundred twenty-two".