23404134431 has 8 divisors (see below), whose sum is σ = 24738159600. Its totient is φ = 22080332160.

The previous prime is 23404134389. The next prime is 23404134443. The reversal of 23404134431 is 13443140432.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23404134431 - 2⁶ = 23404134367 is a prime.

It is a super-2 number, since 2×23404134431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23404134394 and 23404134403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404134491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2551016 + ... + 2560173.

It is an arithmetic number, because the mean of its divisors is an integer number (3092269950).

Almost surely, 2^23404134431 is an apocalyptic number.

23404134431 is a deficient number, since it is larger than the sum of its proper divisors (1334025169).

23404134431 is a wasteful number, since it uses less digits than its factorization.

23404134431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111449.

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

Adding to 23404134431 its reverse (13443140432), we get a palindrome (36847274863).

The spelling of 23404134431 in words is "twenty-three billion, four hundred four million, one hundred thirty-four thousand, four hundred thirty-one".