2110001900018 has 16 divisors (see below), whose sum is σ = 3206715717816. Its totient is φ = 1041176801280.

The previous prime is 2110001899987. The next prime is 2110001900117. The reversal of 2110001900018 is 8100091000112.

It can be written as a sum of positive squares in 4 ways, for example, as 1439104939129 + 670896960889 = 1199627^2 + 819083^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2110001899966 and 2110001900002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19982303 + ... + 20087618.

Almost surely, 2^{2110001900018} is an apocalyptic number.

2110001900018 is a deficient number, since it is larger than the sum of its proper divisors (1096713817798).

2110001900018 is a wasteful number, since it uses less digits than its factorization.

2110001900018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40070269.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 2110001900018 in words is "two trillion, one hundred ten billion, one million, nine hundred thousand, eighteen".