423122311 has 4 divisors (see below), whose sum is σ = 423189432. Its totient is φ = 423055192.

The previous prime is 423122263. The next prime is 423122321. The reversal of 423122311 is 113221324.

It is a happy number.

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 423122311 - 2²¹ = 421025159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423122321) 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, 22996 + ... + 37081.

It is an arithmetic number, because the mean of its divisors is an integer number (105797358).

Almost surely, 2^423122311 is an apocalyptic number.

423122311 is a deficient number, since it is larger than the sum of its proper divisors (67121).

423122311 is an equidigital number, since it uses as much as digits as its factorization.

423122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67120.

The product of its digits is 288, while the sum is 19.

The square root of 423122311 is about 20569.9370684502. The cubic root of 423122311 is about 750.7384200019.

Adding to 423122311 its reverse (113221324), we get a palindrome (536343635).

The spelling of 423122311 in words is "four hundred twenty-three million, one hundred twenty-two thousand, three hundred eleven".