2104210023 has 4 divisors (see below), whose sum is σ = 2805613368. Its totient is φ = 1402806680.

The previous prime is 2104210021. The next prime is 2104210061. The reversal of 2104210023 is 3200124012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2104210023 - 2¹ = 2104210021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2104209984 and 2104210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104210021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350701668 + ... + 350701673.

It is an arithmetic number, because the mean of its divisors is an integer number (701403342).

Almost surely, 2^2104210023 is an apocalyptic number.

2104210023 is a deficient number, since it is larger than the sum of its proper divisors (701403345).

2104210023 is an equidigital number, since it uses as much as digits as its factorization.

2104210023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701403344.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2104210023 is about 45871.6690670832. The cubic root of 2104210023 is about 1281.4343505414.

Adding to 2104210023 its reverse (3200124012), we get a palindrome (5304334035).

The spelling of 2104210023 in words is "two billion, one hundred four million, two hundred ten thousand, twenty-three".