423023251 has 4 divisors (see below), whose sum is σ = 483455152. Its totient is φ = 362591352.

The previous prime is 423023243. The next prime is 423023267. The reversal of 423023251 is 152320324.

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 423023251 - 2³ = 423023243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423023231) 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, 30215940 + ... + 30215953.

It is an arithmetic number, because the mean of its divisors is an integer number (120863788).

Almost surely, 2^423023251 is an apocalyptic number.

423023251 is a deficient number, since it is larger than the sum of its proper divisors (60431901).

423023251 is an equidigital number, since it uses as much as digits as its factorization.

423023251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60431900.

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

The square root of 423023251 is about 20567.5290445887. The cubic root of 423023251 is about 750.6798286282.

Adding to 423023251 its reverse (152320324), we get a palindrome (575343575).

The spelling of 423023251 in words is "four hundred twenty-three million, twenty-three thousand, two hundred fifty-one".