210020220023 has 4 divisors (see below), whose sum is σ = 211015576728. Its totient is φ = 209024863320.

The previous prime is 210020219987. The next prime is 210020220061. The reversal of 210020220023 is 320022020012.

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 210020220023 - 2¹⁰ = 210020218999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020220323) 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, 497678036 + ... + 497678457.

It is an arithmetic number, because the mean of its divisors is an integer number (52753894182).

Almost surely, 2^210020220023 is an apocalyptic number.

210020220023 is a deficient number, since it is larger than the sum of its proper divisors (995356705).

210020220023 is an equidigital number, since it uses as much as digits as its factorization.

210020220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995356704.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 210020220023 its reverse (320022020012), we get a palindrome (530042240035).

The spelling of 210020220023 in words is "two hundred ten billion, twenty million, two hundred twenty thousand, twenty-three".