123354453305021 has 8 divisors (see below), whose sum is σ = 123705581387520. Its totient is φ = 123003334726272.

The previous prime is 123354453304997. The next prime is 123354453305081. The reversal of 123354453305021 is 120503354453321.

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

It is a cyclic number.

It is not a de Polignac number, because 123354453305021 - 2¹⁴ = 123354453288637 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 123354453305021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123354453305081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24037406 + ... + 28714208.

It is an arithmetic number, because the mean of its divisors is an integer number (15463197673440).

Almost surely, 2^{123354453305021} is an apocalyptic number.

It is an amenable number.

123354453305021 is a deficient number, since it is larger than the sum of its proper divisors (351128082499).

123354453305021 is an equidigital number, since it uses as much as digits as its factorization.

123354453305021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751875.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 123354453305021 in words is "one hundred twenty-three trillion, three hundred fifty-four billion, four hundred fifty-three million, three hundred five thousand, twenty-one".