318852861330831 has 4 divisors (see below), whose sum is σ = 425137148441112. Its totient is φ = 212568574220552.

The previous prime is 318852861330811. The next prime is 318852861330859. The reversal of 318852861330831 is 138033168258813.

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

It is a cyclic number.

It is not a de Polignac number, because 318852861330831 - 2⁶ = 318852861330767 is a prime.

It is a super-2 number, since 2×318852861330831² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318852861330811) 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, 53142143555136 + ... + 53142143555141.

It is an arithmetic number, because the mean of its divisors is an integer number (106284287110278).

Almost surely, 2^{318852861330831} is an apocalyptic number.

318852861330831 is a deficient number, since it is larger than the sum of its proper divisors (106284287110281).

318852861330831 is a wasteful number, since it uses less digits than its factorization.

318852861330831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106284287110280.

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 318852861330831 in words is "three hundred eighteen trillion, eight hundred fifty-two billion, eight hundred sixty-one million, three hundred thirty thousand, eight hundred thirty-one".