318213125393 has 8 divisors (see below), whose sum is σ = 323610835200. Its totient is φ = 312821257680.

The previous prime is 318213125387. The next prime is 318213125423. The reversal of 318213125393 is 393521312813.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 318213125393 - 2¹² = 318213121297 is a prime.

It is a super-2 number, since 2×318213125393² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 318213125393.

It is not an unprimeable number, because it can be changed into a prime (318213125323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350593 + ... + 1568606.

It is an arithmetic number, because the mean of its divisors is an integer number (40451354400).

Almost surely, 2^318213125393 is an apocalyptic number.

It is an amenable number.

318213125393 is a deficient number, since it is larger than the sum of its proper divisors (5397709807).

318213125393 is a wasteful number, since it uses less digits than its factorization.

318213125393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921047.

The product of its digits is 116640, while the sum is 41.

The spelling of 318213125393 in words is "three hundred eighteen billion, two hundred thirteen million, one hundred twenty-five thousand, three hundred ninety-three".