297185931131 has 2 divisors, whose sum is σ = 297185931132. Its totient is φ = 297185931130.

The previous prime is 297185931113. The next prime is 297185931139. The reversal of 297185931131 is 131139581792.

It is a happy number.

Together with previous prime (297185931113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-297185931131 is a prime.

It is a super-2 number, since 2×297185931131² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 297185931131.

It is not a weakly prime, because it can be changed into another prime (297185931139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148592965565 + 148592965566.

It is an arithmetic number, because the mean of its divisors is an integer number (148592965566).

Almost surely, 2^297185931131 is an apocalyptic number.

297185931131 is a deficient number, since it is larger than the sum of its proper divisors (1).

297185931131 is an equidigital number, since it uses as much as digits as its factorization.

297185931131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 50.

The spelling of 297185931131 in words is "two hundred ninety-seven billion, one hundred eighty-five million, nine hundred thirty-one thousand, one hundred thirty-one".