234423012431 has 16 divisors (see below), whose sum is σ = 238421314560. Its totient is φ = 230459860800.

The previous prime is 234423012403. The next prime is 234423012449. The reversal of 234423012431 is 134210324432.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234423012431 is a prime.

It is a super-2 number, since 2×234423012431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234423012394 and 234423012403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234423012931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29748950 + ... + 29756828.

It is an arithmetic number, because the mean of its divisors is an integer number (14901332160).

Almost surely, 2^234423012431 is an apocalyptic number.

234423012431 is a deficient number, since it is larger than the sum of its proper divisors (3998302129).

234423012431 is a wasteful number, since it uses less digits than its factorization.

234423012431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10046.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 234423012431 its reverse (134210324432), we get a palindrome (368633336863).

The spelling of 234423012431 in words is "two hundred thirty-four billion, four hundred twenty-three million, twelve thousand, four hundred thirty-one".