23450128043 has 4 divisors (see below), whose sum is σ = 23452100880. Its totient is φ = 23448155208.

The previous prime is 23450128007. The next prime is 23450128057. The reversal of 23450128043 is 34082105432.

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-23450128043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23450128843) 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, 968480 + ... + 992397.

It is an arithmetic number, because the mean of its divisors is an integer number (5863025220).

Almost surely, 2^23450128043 is an apocalyptic number.

23450128043 is a deficient number, since it is larger than the sum of its proper divisors (1972837).

23450128043 is a wasteful number, since it uses less digits than its factorization.

23450128043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972836.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 23450128043 in words is "twenty-three billion, four hundred fifty million, one hundred twenty-eight thousand, forty-three".