2118512232 has 80 divisors (see below), whose sum is σ = 5941584000. Its totient is φ = 705244320.

The previous prime is 2118512213. The next prime is 2118512243. The reversal of 2118512232 is 2322158112.

2118512232 is a `hidden beast` number, since 2 + 118 + 512 + 2 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2118512196 and 2118512205.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 640519 + ... + 643817.

It is an arithmetic number, because the mean of its divisors is an integer number (74269800).

Almost surely, 2^2118512232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2118512232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2970792000).

2118512232 is an abundant number, since it is smaller than the sum of its proper divisors (3823071768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2118512232 is a wasteful number, since it uses less digits than its factorization.

2118512232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308 (or 4295 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 2118512232 is about 46027.2987693173. The cubic root of 2118512232 is about 1284.3310789179.

The spelling of 2118512232 in words is "two billion, one hundred eighteen million, five hundred twelve thousand, two hundred thirty-two".