2118201153 has 4 divisors (see below), whose sum is σ = 2824268208. Its totient is φ = 1412134100.

The previous prime is 2118201133. The next prime is 2118201179. The reversal of 2118201153 is 3511028112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2118201153 - 2⁵ = 2118201121 is a prime.

It is a super-2 number, since 2×2118201153² = 8973552249141058818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2118201103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353033523 + ... + 353033528.

It is an arithmetic number, because the mean of its divisors is an integer number (706067052).

Almost surely, 2^2118201153 is an apocalyptic number.

It is an amenable number.

2118201153 is a deficient number, since it is larger than the sum of its proper divisors (706067055).

2118201153 is an equidigital number, since it uses as much as digits as its factorization.

2118201153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706067054.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 2118201153 is about 46023.9193572212. The cubic root of 2118201153 is about 1284.2682127897.

Adding to 2118201153 its reverse (3511028112), we get a palindrome (5629229265).

The spelling of 2118201153 in words is "two billion, one hundred eighteen million, two hundred one thousand, one hundred fifty-three".