123354550421 has 8 divisors (see below), whose sum is σ = 129880936320. Its totient is φ = 116831568672.

The previous prime is 123354550409. The next prime is 123354550447. The reversal of 123354550421 is 124055453321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123354550421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123354550021) 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, 776480 + ... + 921753.

It is an arithmetic number, because the mean of its divisors is an integer number (16235117040).

Almost surely, 2^123354550421 is an apocalyptic number.

It is an amenable number.

123354550421 is a deficient number, since it is larger than the sum of its proper divisors (6526385899).

123354550421 is a wasteful number, since it uses less digits than its factorization.

123354550421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702075.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 123354550421 in words is "one hundred twenty-three billion, three hundred fifty-four million, five hundred fifty thousand, four hundred twenty-one".