4454042012123 has 6 divisors (see below), whose sum is σ = 4895765187012. Its totient is φ = 4049129101820.

The previous prime is 4454042012111. The next prime is 4454042012207. The reversal of 4454042012123 is 3212102404544.

It is not a de Polignac number, because 4454042012123 - 2¹⁰ = 4454042011099 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 4454042012123.

It is not an unprimeable number, because it can be changed into a prime (4454012012123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18405132161 + ... + 18405132402.

It is an arithmetic number, because the mean of its divisors is an integer number (815960864502).

Almost surely, 2^{4454042012123} is an apocalyptic number.

4454042012123 is a deficient number, since it is larger than the sum of its proper divisors (441723174889).

4454042012123 is a wasteful number, since it uses less digits than its factorization.

4454042012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36810264585 (or 36810264574 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 4454042012123 its reverse (3212102404544), we get a palindrome (7666144416667).

The spelling of 4454042012123 in words is "four trillion, four hundred fifty-four billion, forty-two million, twelve thousand, one hundred twenty-three".