123454044044421 has 8 divisors (see below), whose sum is σ = 164605813841184. Its totient is φ = 82302485138640.

The previous prime is 123454044044381. The next prime is 123454044044423. The reversal of 123454044044421 is 124440440454321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123454044044421 - 2³⁹ = 122904288230533 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 (123454044044423) 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 7 ways as a sum of consecutive naturals, for example, 51351735 + ... + 53702036.

It is an arithmetic number, because the mean of its divisors is an integer number (20575726730148).

Almost surely, 2^{123454044044421} is an apocalyptic number.

It is an amenable number.

123454044044421 is a deficient number, since it is larger than the sum of its proper divisors (41151769796763).

123454044044421 is a wasteful number, since it uses less digits than its factorization.

123454044044421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105445491.

The product of its (nonzero) digits is 983040, while the sum is 42.

Adding to 123454044044421 its reverse (124440440454321), we get a palindrome (247894484498742).

The spelling of 123454044044421 in words is "one hundred twenty-three trillion, four hundred fifty-four billion, forty-four million, forty-four thousand, four hundred twenty-one".