118203321513 has 16 divisors (see below), whose sum is σ = 158302368000. Its totient is φ = 78453406080.

The previous prime is 118203321491. The next prime is 118203321529. The reversal of 118203321513 is 315123302811.

It is not a de Polignac number, because 118203321513 - 2²⁸ = 117934886057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (118203320513) 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, 3315603 + ... + 3351063.

It is an arithmetic number, because the mean of its divisors is an integer number (9893898000).

Almost surely, 2^118203321513 is an apocalyptic number.

It is an amenable number.

118203321513 is a deficient number, since it is larger than the sum of its proper divisors (40099046487).

118203321513 is a wasteful number, since it uses less digits than its factorization.

118203321513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40352.

The product of its (nonzero) digits is 4320, while the sum is 30.

It can be divided in two parts, 11820 and 3321513, that added together give a palindrome (3333333).

The spelling of 118203321513 in words is "one hundred eighteen billion, two hundred three million, three hundred twenty-one thousand, five hundred thirteen".