431313660137 has 2 divisors, whose sum is σ = 431313660138. Its totient is φ = 431313660136.

The previous prime is 431313660109. The next prime is 431313660161. The reversal of 431313660137 is 731066313134.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219364836496 + 211948823641 = 468364^2 + 460379^2 .

It is a cyclic number.

It is not a de Polignac number, because 431313660137 - 2²⁶ = 431246551273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 431313660137.

It is not a weakly prime, because it can be changed into another prime (431313665137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215656830068 + 215656830069.

It is an arithmetic number, because the mean of its divisors is an integer number (215656830069).

Almost surely, 2^431313660137 is an apocalyptic number.

It is an amenable number.

431313660137 is a deficient number, since it is larger than the sum of its proper divisors (1).

431313660137 is an equidigital number, since it uses as much as digits as its factorization.

431313660137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 38.

The spelling of 431313660137 in words is "four hundred thirty-one billion, three hundred thirteen million, six hundred sixty thousand, one hundred thirty-seven".