318670017131 has 4 divisors (see below), whose sum is σ = 318781560072. Its totient is φ = 318558474192.

The previous prime is 318670017109. The next prime is 318670017161. The reversal of 318670017131 is 131710076813.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318670017131 is a prime.

It is a super-2 number, since 2×318670017131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318670017161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55767185 + ... + 55772898.

It is an arithmetic number, because the mean of its divisors is an integer number (79695390018).

Almost surely, 2^318670017131 is an apocalyptic number.

318670017131 is a deficient number, since it is larger than the sum of its proper divisors (111542941).

318670017131 is a wasteful number, since it uses less digits than its factorization.

318670017131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111542940.

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 318670017131 in words is "three hundred eighteen billion, six hundred seventy million, seventeen thousand, one hundred thirty-one".