131571704287 has 2 divisors, whose sum is σ = 131571704288. Its totient is φ = 131571704286.

The previous prime is 131571704219. The next prime is 131571704371. The reversal of 131571704287 is 782407175131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131571704287 is a prime.

It is a super-2 number, since 2×131571704287² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131571704207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65785852143 + 65785852144.

It is an arithmetic number, because the mean of its divisors is an integer number (65785852144).

Almost surely, 2^131571704287 is an apocalyptic number.

131571704287 is a deficient number, since it is larger than the sum of its proper divisors (1).

131571704287 is an equidigital number, since it uses as much as digits as its factorization.

131571704287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 329280, while the sum is 46.

The spelling of 131571704287 in words is "one hundred thirty-one billion, five hundred seventy-one million, seven hundred four thousand, two hundred eighty-seven".