234331431 has 4 divisors (see below), whose sum is σ = 312441912. Its totient is φ = 156220952.

The previous prime is 234331403. The next prime is 234331457. The reversal of 234331431 is 134133432.

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

It is a cyclic number.

It is not a de Polignac number, because 234331431 - 2⁶ = 234331367 is a prime.

It is a super-2 number, since 2×234331431² = 109822439109015522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234331481) 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, 39055236 + ... + 39055241.

It is an arithmetic number, because the mean of its divisors is an integer number (78110478).

Almost surely, 2^234331431 is an apocalyptic number.

234331431 is a deficient number, since it is larger than the sum of its proper divisors (78110481).

234331431 is an equidigital number, since it uses as much as digits as its factorization.

234331431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78110480.

The product of its digits is 2592, while the sum is 24.

The square root of 234331431 is about 15307.8878686774. The cubic root of 234331431 is about 616.5148116305.

Adding to 234331431 its reverse (134133432), we get a palindrome (368464863).

The spelling of 234331431 in words is "two hundred thirty-four million, three hundred thirty-one thousand, four hundred thirty-one".