318646121101 has 16 divisors (see below), whose sum is σ = 418182197760. Its totient is φ = 235227484080.

The previous prime is 318646121023. The next prime is 318646121113. The reversal of 318646121101 is 101121646813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318646121101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318646121141) 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, 108900151 + ... + 108903076.

It is an arithmetic number, because the mean of its divisors is an integer number (26136387360).

Almost surely, 2^318646121101 is an apocalyptic number.

It is an amenable number.

318646121101 is a deficient number, since it is larger than the sum of its proper divisors (99536076659).

318646121101 is a wasteful number, since it uses less digits than its factorization.

318646121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217803264.

The product of its (nonzero) digits is 6912, while the sum is 34.

Adding to 318646121101 its reverse (101121646813), we get a palindrome (419767767914).

The spelling of 318646121101 in words is "three hundred eighteen billion, six hundred forty-six million, one hundred twenty-one thousand, one hundred one".