434330231 has 2 divisors, whose sum is σ = 434330232. Its totient is φ = 434330230.

The previous prime is 434330213. The next prime is 434330251. The reversal of 434330231 is 132033434.

Together with previous prime (434330213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434330231 is a prime.

It is a super-2 number, since 2×434330231² = 377285499121026722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 434330197 and 434330206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434330251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217165115 + 217165116.

It is an arithmetic number, because the mean of its divisors is an integer number (217165116).

Almost surely, 2^434330231 is an apocalyptic number.

434330231 is a deficient number, since it is larger than the sum of its proper divisors (1).

434330231 is an equidigital number, since it uses as much as digits as its factorization.

434330231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 434330231 is about 20840.5909465159. The cubic root of 434330231 is about 757.3094095838.

Adding to 434330231 its reverse (132033434), we get a palindrome (566363665).

The spelling of 434330231 in words is "four hundred thirty-four million, three hundred thirty thousand, two hundred thirty-one".