450023435123 has 4 divisors (see below), whose sum is σ = 465541484640. Its totient is φ = 434505385608.

The previous prime is 450023435117. The next prime is 450023435161. The reversal of 450023435123 is 321534320054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321534320054 = 2 ⋅160767160027.

It is a cyclic number.

It is not a de Polignac number, because 450023435123 - 2³⁰ = 448949693299 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 450023435123.

It is not an unprimeable number, because it can be changed into a prime (450023435723) 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, 7759024715 + ... + 7759024772.

It is an arithmetic number, because the mean of its divisors is an integer number (116385371160).

Almost surely, 2^450023435123 is an apocalyptic number.

450023435123 is a deficient number, since it is larger than the sum of its proper divisors (15518049517).

450023435123 is a wasteful number, since it uses less digits than its factorization.

450023435123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15518049516.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 450023435123 its reverse (321534320054), we get a palindrome (771557755177).

The spelling of 450023435123 in words is "four hundred fifty billion, twenty-three million, four hundred thirty-five thousand, one hundred twenty-three".