131306836297 has 12 divisors (see below), whose sum is σ = 164494279236. Its totient is φ = 103891122720.

The previous prime is 131306836249. The next prime is 131306836321. The reversal of 131306836297 is 792638603131.

It can be written as a sum of positive squares in 2 ways, for example, as 86980165776 + 44326670521 = 294924^2 + 210539^2 .

It is not a de Polignac number, because 131306836297 - 2¹¹ = 131306834249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 131306836297.

It is not an unprimeable number, because it can be changed into a prime (131306836237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103065954 + ... + 103067227.

It is an arithmetic number, because the mean of its divisors is an integer number (13707856603).

Almost surely, 2^131306836297 is an apocalyptic number.

It is an amenable number.

131306836297 is a deficient number, since it is larger than the sum of its proper divisors (33187442939).

131306836297 is a wasteful number, since it uses less digits than its factorization.

131306836297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206133208 (or 206133201 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 131306836297 in words is "one hundred thirty-one billion, three hundred six million, eight hundred thirty-six thousand, two hundred ninety-seven".