422330231 has 2 divisors, whose sum is σ = 422330232. Its totient is φ = 422330230.

The previous prime is 422330221. The next prime is 422330243. The reversal of 422330231 is 132033224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422330231 is a prime.

It is a super-2 number, since 2×422330231² = 356725648033026722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422330221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211165115 + 211165116.

It is an arithmetic number, because the mean of its divisors is an integer number (211165116).

Almost surely, 2^422330231 is an apocalyptic number.

422330231 is a deficient number, since it is larger than the sum of its proper divisors (1).

422330231 is an equidigital number, since it uses as much as digits as its factorization.

422330231 is an evil number, because the sum of its binary digits is even.

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

The square root of 422330231 is about 20550.6747091184. The cubic root of 422330231 is about 750.2696695447.

Adding to 422330231 its reverse (132033224), we get a palindrome (554363455).

The spelling of 422330231 in words is "four hundred twenty-two million, three hundred thirty thousand, two hundred thirty-one".