234323431 has 2 divisors, whose sum is σ = 234323432. Its totient is φ = 234323430.

The previous prime is 234323407. The next prime is 234323489. The reversal of 234323431 is 134323432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234323431 - 2⁵ = 234323399 is a prime.

It is a super-2 number, since 2×234323431² = 109814940631223522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234323396 and 234323405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234323231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117161715 + 117161716.

It is an arithmetic number, because the mean of its divisors is an integer number (117161716).

Almost surely, 2^234323431 is an apocalyptic number.

234323431 is a deficient number, since it is larger than the sum of its proper divisors (1).

234323431 is an equidigital number, since it uses as much as digits as its factorization.

234323431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 25.

The square root of 234323431 is about 15307.6265632527. The cubic root of 234323431 is about 616.5077956780.

Adding to 234323431 its reverse (134323432), we get a palindrome (368646863).

Subtracting from 234323431 its reverse (134323432), we obtain a palindrome (99999999).

The spelling of 234323431 in words is "two hundred thirty-four million, three hundred twenty-three thousand, four hundred thirty-one".