2100023109 has 12 divisors (see below), whose sum is σ = 3071764800. Its totient is φ = 1382293224.

The previous prime is 2100023099. The next prime is 2100023117. The reversal of 2100023109 is 9013200012.

It is a happy number.

It is not a de Polignac number, because 2100023109 - 2⁵ = 2100023077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100023091 and 2100023100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100023609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1476099 + ... + 1477520.

It is an arithmetic number, because the mean of its divisors is an integer number (255980400).

Almost surely, 2^2100023109 is an apocalyptic number.

It is an amenable number.

2100023109 is a deficient number, since it is larger than the sum of its proper divisors (971741691).

2100023109 is a wasteful number, since it uses less digits than its factorization.

2100023109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953704 (or 2953701 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2100023109 is about 45826.0090887260. The cubic root of 2100023109 is about 1280.5838622566.

The spelling of 2100023109 in words is "two billion, one hundred million, twenty-three thousand, one hundred nine".