210523423 has 12 divisors (see below), whose sum is σ = 233085160. Its totient is φ = 189992880.

The previous prime is 210523421. The next prime is 210523429. The reversal of 210523423 is 324325012.

210523423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210523423 - 2¹ = 210523421 is a prime.

It is a super-2 number, since 2×210523423² = 88640223263273858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210523394 and 210523403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210523421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10561 + ... + 23077.

Almost surely, 2^210523423 is an apocalyptic number.

210523423 is a deficient number, since it is larger than the sum of its proper divisors (22561737).

210523423 is a wasteful number, since it uses less digits than its factorization.

210523423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12678 (or 12667 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 210523423 is about 14509.4253159800. The cubic root of 210523423 is about 594.8856245092.

Adding to 210523423 its reverse (324325012), we get a palindrome (534848435).

The spelling of 210523423 in words is "two hundred ten million, five hundred twenty-three thousand, four hundred twenty-three".