421550055123 has 8 divisors (see below), whose sum is σ = 574025607168. Its totient is φ = 275053936584.

The previous prime is 421550055107. The next prime is 421550055181. The reversal of 421550055123 is 321550055124.

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

It is not a de Polignac number, because 421550055123 - 2⁴ = 421550055107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421550055193) 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, 1494858211 + ... + 1494858492.

It is an arithmetic number, because the mean of its divisors is an integer number (71753200896).

Almost surely, 2^421550055123 is an apocalyptic number.

421550055123 is a deficient number, since it is larger than the sum of its proper divisors (152475552045).

421550055123 is a wasteful number, since it uses less digits than its factorization.

421550055123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989716753.

The product of its (nonzero) digits is 30000, while the sum is 33.

Subtracting from 421550055123 its reverse (321550055124), we obtain a palindrome (99999999999).

The spelling of 421550055123 in words is "four hundred twenty-one billion, five hundred fifty million, fifty-five thousand, one hundred twenty-three".