131602780308451 has 2 divisors, whose sum is σ = 131602780308452. Its totient is φ = 131602780308450.

The previous prime is 131602780308437. The next prime is 131602780308463. The reversal of 131602780308451 is 154803087206131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131602780308451 - 2²⁵ = 131602746754019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131602780308395 and 131602780308404.

It is not a weakly prime, because it can be changed into another prime (131602780308151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65801390154225 + 65801390154226.

It is an arithmetic number, because the mean of its divisors is an integer number (65801390154226).

Almost surely, 2^{131602780308451} is an apocalyptic number.

131602780308451 is a deficient number, since it is larger than the sum of its proper divisors (1).

131602780308451 is an equidigital number, since it uses as much as digits as its factorization.

131602780308451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 131602780308451 in words is "one hundred thirty-one trillion, six hundred two billion, seven hundred eighty million, three hundred eight thousand, four hundred fifty-one".