318109843037 has 6 divisors (see below), whose sum is σ = 370046143998. Its totient is φ = 272665579704.

The previous prime is 318109843021. The next prime is 318109843063. The reversal of 318109843037 is 730348901813.

It can be written as a sum of positive squares in only one way, i.e., 182012303641 + 136097539396 = 426629^2 + 368914^2 .

It is not a de Polignac number, because 318109843037 - 2⁴ = 318109843021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 318109842982 and 318109843000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318109843067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3246018758 + ... + 3246018855.

It is an arithmetic number, because the mean of its divisors is an integer number (61674357333).

Almost surely, 2^318109843037 is an apocalyptic number.

It is an amenable number.

318109843037 is a deficient number, since it is larger than the sum of its proper divisors (51936300961).

318109843037 is an equidigital number, since it uses as much as digits as its factorization.

318109843037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6492037627 (or 6492037620 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 318109843037 in words is "three hundred eighteen billion, one hundred nine million, eight hundred forty-three thousand, thirty-seven".