23404451431 has 8 divisors (see below), whose sum is σ = 23840538624. Its totient is φ = 22971321240.

The previous prime is 23404451387. The next prime is 23404451449. The reversal of 23404451431 is 13415440432.

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 23404451431 - 2²⁷ = 23270233703 is a prime.

It is a super-2 number, since 2×23404451431² (a number of 22 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 = 23404451393 and 23404451402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404451461) 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, 723271 + ... + 754936.

It is an arithmetic number, because the mean of its divisors is an integer number (2980067328).

Almost surely, 2^23404451431 is an apocalyptic number.

23404451431 is a deficient number, since it is larger than the sum of its proper divisors (436087193).

23404451431 is a wasteful number, since it uses less digits than its factorization.

23404451431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478501.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 23404451431 its reverse (13415440432), we get a palindrome (36819891863).

The spelling of 23404451431 in words is "twenty-three billion, four hundred four million, four hundred fifty-one thousand, four hundred thirty-one".