2120000018 has 16 divisors (see below), whose sum is σ = 3268193280. Its totient is φ = 1030818096.

The previous prime is 2120000017. The next prime is 2120000023. The reversal of 2120000018 is 8100000212.

It is a junction number, because it is equal to n+sod(n) for n = 2119999957 and 2120000011.

It is not an unprimeable number, because it can be changed into a prime (2120000017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34130 + ... + 73517.

It is an arithmetic number, because the mean of its divisors is an integer number (204262080).

Almost surely, 2^2120000018 is an apocalyptic number.

2120000018 is a deficient number, since it is larger than the sum of its proper divisors (1148193262).

2120000018 is a wasteful number, since it uses less digits than its factorization.

2120000018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107921.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2120000018 is about 46043.4579283529. The cubic root of 2120000018 is about 1284.6316613482.

The spelling of 2120000018 in words is "two billion, one hundred twenty million, eighteen", and thus it is an aban number.