210220023 has 32 divisors (see below), whose sum is σ = 317560320. Its totient is φ = 122728320.

The previous prime is 210220019. The next prime is 210220033. The reversal of 210220023 is 320022012.

It is not a de Polignac number, because 210220023 - 2² = 210220019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210219990 and 210220008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210220033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116613 + ... + 118401.

It is an arithmetic number, because the mean of its divisors is an integer number (9923760).

Almost surely, 2^210220023 is an apocalyptic number.

210220023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

210220023 is a deficient number, since it is larger than the sum of its proper divisors (107340297).

210220023 is a wasteful number, since it uses less digits than its factorization.

210220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 210220023 is about 14498.9662734969. The cubic root of 210220023 is about 594.5997100487.

Adding to 210220023 its reverse (320022012), we get a palindrome (530242035).

The spelling of 210220023 in words is "two hundred ten million, two hundred twenty thousand, twenty-three".