210323423 has 4 divisors (see below), whose sum is σ = 210379920. Its totient is φ = 210266928.

The previous prime is 210323419. The next prime is 210323459. The reversal of 210323423 is 324323012.

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 210323423 - 2² = 210323419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210323395 and 210323404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210323123) 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, 22238 + ... + 30251.

It is an arithmetic number, because the mean of its divisors is an integer number (52594980).

Almost surely, 2^210323423 is an apocalyptic number.

210323423 is a deficient number, since it is larger than the sum of its proper divisors (56497).

210323423 is an equidigital number, since it uses as much as digits as its factorization.

210323423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56496.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 210323423 is about 14502.5316065851. The cubic root of 210323423 is about 594.6971817859.

Adding to 210323423 its reverse (324323012), we get a palindrome (534646435).

The spelling of 210323423 in words is "two hundred ten million, three hundred twenty-three thousand, four hundred twenty-three".