210120200023 has 16 divisors (see below), whose sum is σ = 214880309280. Its totient is φ = 205403990400.

The previous prime is 210120199999. The next prime is 210120200041. The reversal of 210120200023 is 320002021012.

It is a cyclic number.

It is not a de Polignac number, because 210120200023 - 2³⁷ = 72681246551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210120199976 and 210120200012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120201023) 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, 20718888 + ... + 20729026.

It is an arithmetic number, because the mean of its divisors is an integer number (13430019330).

Almost surely, 2^210120200023 is an apocalyptic number.

210120200023 is a deficient number, since it is larger than the sum of its proper divisors (4760109257).

210120200023 is a wasteful number, since it uses less digits than its factorization.

210120200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12258.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 210120200023 its reverse (320002021012), we get a palindrome (530122221035).

The spelling of 210120200023 in words is "two hundred ten billion, one hundred twenty million, two hundred thousand, twenty-three".