131321020121122 has 12 divisors (see below), whose sum is σ = 213299526765330. Its totient is φ = 60609701594208.

The previous prime is 131321020121113. The next prime is 131321020121171. The reversal of 131321020121122 is 221121020123131.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 41505046038481 + 89815974082641 = 6442441^2 + 9477129^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131321020121093 and 131321020121102.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194261863747 + ... + 194261864422.

Almost surely, 2^{131321020121122} is an apocalyptic number.

131321020121122 is a deficient number, since it is larger than the sum of its proper divisors (81978506644208).

131321020121122 is a wasteful number, since it uses less digits than its factorization.

131321020121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388523728197 (or 388523728184 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131321020121122 its reverse (221121020123131), we get a palindrome (352442040244253).

The spelling of 131321020121122 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, twenty million, one hundred twenty-one thousand, one hundred twenty-two".