432320431 has 2 divisors, whose sum is σ = 432320432. Its totient is φ = 432320430.

The previous prime is 432320423. The next prime is 432320477. The reversal of 432320431 is 134023234.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 432320431 - 2³ = 432320423 is a prime.

It is a super-2 number, since 2×432320431² = 373801910120051522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432320131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216160215 + 216160216.

It is an arithmetic number, because the mean of its divisors is an integer number (216160216).

Almost surely, 2^432320431 is an apocalyptic number.

432320431 is a deficient number, since it is larger than the sum of its proper divisors (1).

432320431 is an equidigital number, since it uses as much as digits as its factorization.

432320431 is an evil number, because the sum of its binary digits is even.

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

The square root of 432320431 is about 20792.3166337953. The cubic root of 432320431 is about 756.1394901153.

Adding to 432320431 its reverse (134023234), we get a palindrome (566343665).

The spelling of 432320431 in words is "four hundred thirty-two million, three hundred twenty thousand, four hundred thirty-one".