234400200123 has 4 divisors (see below), whose sum is σ = 312533600168. Its totient is φ = 156266800080.

The previous prime is 234400200101. The next prime is 234400200143. The reversal of 234400200123 is 321002004432.

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

It is not a de Polignac number, because 234400200123 - 2⁹ = 234400199611 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 234400200123.

It is not an unprimeable number, because it can be changed into a prime (234400200143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39066700018 + ... + 39066700023.

It is an arithmetic number, because the mean of its divisors is an integer number (78133400042).

Almost surely, 2^234400200123 is an apocalyptic number.

234400200123 is a deficient number, since it is larger than the sum of its proper divisors (78133400045).

234400200123 is an equidigital number, since it uses as much as digits as its factorization.

234400200123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78133400044.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 234400200123 its reverse (321002004432), we get a palindrome (555402204555).

The spelling of 234400200123 in words is "two hundred thirty-four billion, four hundred million, two hundred thousand, one hundred twenty-three".