23455251430423 has 4 divisors (see below), whose sum is σ = 23483820556008. Its totient is φ = 23426682304840.

The previous prime is 23455251430363. The next prime is 23455251430451. The reversal of 23455251430423 is 32403415255432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23455251430423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23455251430423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23455251434423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14284561561 + ... + 14284563202.

It is an arithmetic number, because the mean of its divisors is an integer number (5870955139002).

Almost surely, 2^{23455251430423} is an apocalyptic number.

23455251430423 is a deficient number, since it is larger than the sum of its proper divisors (28569125585).

23455251430423 is an equidigital number, since it uses as much as digits as its factorization.

23455251430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28569125584.

The product of its (nonzero) digits is 1728000, while the sum is 43.

Adding to 23455251430423 its reverse (32403415255432), we get a palindrome (55858666685855).

The spelling of 23455251430423 in words is "twenty-three trillion, four hundred fifty-five billion, two hundred fifty-one million, four hundred thirty thousand, four hundred twenty-three".