2100020123118 has 32 divisors (see below), whose sum is σ = 4207224863232. Its totient is φ = 698809960800.

The previous prime is 2100020123111. The next prime is 2100020123141. The reversal of 2100020123118 is 8113210200012.

It is a junction number, because it is equal to n+sod(n) for n = 2100020123094 and 2100020123103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100020123111) 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, 12357888 + ... + 12526668.

It is an arithmetic number, because the mean of its divisors is an integer number (131475776976).

Almost surely, 2^{2100020123118} is an apocalyptic number.

2100020123118 is an abundant number, since it is smaller than the sum of its proper divisors (2107204740114).

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

2100020123118 is a wasteful number, since it uses less digits than its factorization.

2100020123118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172320.

The product of its (nonzero) digits is 192, while the sum is 21.

The spelling of 2100020123118 in words is "two trillion, one hundred billion, twenty million, one hundred twenty-three thousand, one hundred eighteen".