131321304441 has 18 divisors (see below), whose sum is σ = 196002639690. Its totient is φ = 84723416640.

The previous prime is 131321304437. The next prime is 131321304461. The reversal of 131321304441 is 144403123131.

131321304441 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 213 + 0 + 4 + 441 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104742849600 + 26578454841 = 323640^2 + 163029^2 .

It is not a de Polignac number, because 131321304441 - 2² = 131321304437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131321304461) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7583056 + ... + 7600353.

Almost surely, 2^131321304441 is an apocalyptic number.

It is an amenable number.

131321304441 is a deficient number, since it is larger than the sum of its proper divisors (64681335249).

131321304441 is a wasteful number, since it uses less digits than its factorization.

131321304441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15183477 (or 15183443 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131321304441 its reverse (144403123131), we get a palindrome (275724427572).

The spelling of 131321304441 in words is "one hundred thirty-one billion, three hundred twenty-one million, three hundred four thousand, four hundred forty-one".