210030423 has 16 divisors (see below), whose sum is σ = 282322176. Its totient is φ = 138885120.

The previous prime is 210030419. The next prime is 210030433. The reversal of 210030423 is 324030012.

It is not a de Polignac number, because 210030423 - 2² = 210030419 is a prime.

It is a super-2 number, since 2×210030423² = 88225557171117858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210030433) 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, 254790 + ... + 255612.

It is an arithmetic number, because the mean of its divisors is an integer number (17645136).

Almost surely, 2^210030423 is an apocalyptic number.

210030423 is a deficient number, since it is larger than the sum of its proper divisors (72291753).

210030423 is a wasteful number, since it uses less digits than its factorization.

210030423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 210030423 is about 14492.4264014001. The cubic root of 210030423 is about 594.4208973725.

Adding to 210030423 its reverse (324030012), we get a palindrome (534060435).

It can be divided in two parts, 2100 and 30423, that added together give a palindrome (32523).

The spelling of 210030423 in words is "two hundred ten million, thirty thousand, four hundred twenty-three".