423022331 has 4 divisors (see below), whose sum is σ = 428980464. Its totient is φ = 417064200.

The previous prime is 423022307. The next prime is 423022337. The reversal of 423022331 is 133220324.

423022331 = 1655² + 1656² + ... + 1796².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423022331 is a prime.

It is a super-2 number, since 2×423022331² = 357895785049347122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423022337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2978960 + ... + 2979101.

It is an arithmetic number, because the mean of its divisors is an integer number (107245116).

Almost surely, 2^423022331 is an apocalyptic number.

423022331 is a deficient number, since it is larger than the sum of its proper divisors (5958133).

423022331 is an equidigital number, since it uses as much as digits as its factorization.

423022331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5958132.

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

The square root of 423022331 is about 20567.5066792259. The cubic root of 423022331 is about 750.6792844297.

Adding to 423022331 its reverse (133220324), we get a palindrome (556242655).

The spelling of 423022331 in words is "four hundred twenty-three million, twenty-two thousand, three hundred thirty-one".