423013243 has 4 divisors (see below), whose sum is σ = 428971248. Its totient is φ = 417055240.

The previous prime is 423013219. The next prime is 423013289. The reversal of 423013243 is 342310324.

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 423013243 - 2⁹ = 423012731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423014243) 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, 2978896 + ... + 2979037.

It is an arithmetic number, because the mean of its divisors is an integer number (107242812).

Almost surely, 2^423013243 is an apocalyptic number.

423013243 is a deficient number, since it is larger than the sum of its proper divisors (5958005).

423013243 is an equidigital number, since it uses as much as digits as its factorization.

423013243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958004.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 423013243 is about 20567.2857470304. The cubic root of 423013243 is about 750.6739086518.

Adding to 423013243 its reverse (342310324), we get a palindrome (765323567).

The spelling of 423013243 in words is "four hundred twenty-three million, thirteen thousand, two hundred forty-three".