318112702121 has 16 divisors (see below), whose sum is σ = 324027325440. Its totient is φ = 312261143040.

The previous prime is 318112702097. The next prime is 318112702123. The reversal of 318112702121 is 121207211813.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 318112702121 - 2³⁰ = 317038960297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318112702123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6630200 + ... + 6678006.

It is an arithmetic number, because the mean of its divisors is an integer number (20251707840).

Almost surely, 2^318112702121 is an apocalyptic number.

It is an amenable number.

318112702121 is a deficient number, since it is larger than the sum of its proper divisors (5914623319).

318112702121 is a wasteful number, since it uses less digits than its factorization.

318112702121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48464.

The product of its (nonzero) digits is 1344, while the sum is 29.

Adding to 318112702121 its reverse (121207211813), we get a palindrome (439319913934).

The spelling of 318112702121 in words is "three hundred eighteen billion, one hundred twelve million, seven hundred two thousand, one hundred twenty-one".