318943076121 has 48 divisors (see below), whose sum is σ = 479667115200. Its totient is φ = 212071885344.

The previous prime is 318943076119. The next prime is 318943076131. The reversal of 318943076121 is 121670349813.

318943076121 is a `hidden beast` number, since 318 + 9 + 4 + 307 + 6 + 1 + 21 = 666.

It is not a de Polignac number, because 318943076121 - 2¹ = 318943076119 is a prime.

It is a super-3 number, since 3×318943076121³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (318943076131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74222445 + ... + 74226741.

It is an arithmetic number, because the mean of its divisors is an integer number (9993064900).

Almost surely, 2^318943076121 is an apocalyptic number.

It is an amenable number.

318943076121 is a deficient number, since it is larger than the sum of its proper divisors (160724039079).

318943076121 is an frugal number, since it uses more digits than its factorization.

318943076121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749 (or 4719 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 318943076121 in words is "three hundred eighteen billion, nine hundred forty-three million, seventy-six thousand, one hundred twenty-one".