123442044453 has 288 divisors, whose sum is σ = 240809587200. Its totient is φ = 60258401280.

The previous prime is 123442044443. The next prime is 123442044521. The reversal of 123442044453 is 354440244321.

123442044453 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 4 + 204 + 445 + 3 = 666.

It is not a de Polignac number, because 123442044453 - 2⁴ = 123442044437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123442044413) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 828470023 + ... + 828470171.

It is an arithmetic number, because the mean of its divisors is an integer number (836144400).

Almost surely, 2^123442044453 is an apocalyptic number.

123442044453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123442044453 is a deficient number, since it is larger than the sum of its proper divisors (117367542747).

123442044453 is a wasteful number, since it uses less digits than its factorization.

123442044453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 123442044453 its reverse (354440244321), we get a palindrome (477882288774).

The spelling of 123442044453 in words is "one hundred twenty-three billion, four hundred forty-two million, forty-four thousand, four hundred fifty-three".