2100020010023 has 16 divisors (see below), whose sum is σ = 2325179606400. Its totient is φ = 1884502546176.

The previous prime is 2100020010019. The next prime is 2100020010037. The reversal of 2100020010023 is 3200100200012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2100020010023 - 2² = 2100020010019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100020009986 and 2100020010013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100020010083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11442590 + ... + 11624667.

It is an arithmetic number, because the mean of its divisors is an integer number (145323725400).

Almost surely, 2^{2100020010023} is an apocalyptic number.

2100020010023 is a deficient number, since it is larger than the sum of its proper divisors (225159596377).

2100020010023 is a wasteful number, since it uses less digits than its factorization.

2100020010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23067466.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 2100020010023 its reverse (3200100200012), we get a palindrome (5300120210035).

The spelling of 2100020010023 in words is "two trillion, one hundred billion, twenty million, ten thousand, twenty-three".