421135222123 has 8 divisors (see below), whose sum is σ = 525051705600. Its totient is φ = 328157315880.

The previous prime is 421135222097. The next prime is 421135222133. The reversal of 421135222123 is 321222531124.

It is a happy number.

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 421135222123 - 2¹⁷ = 421135091051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421135222091 and 421135222100.

It is not an unprimeable number, because it can be changed into a prime (421135222133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2734644223 + ... + 2734644376.

It is an arithmetic number, because the mean of its divisors is an integer number (65631463200).

Almost surely, 2^421135222123 is an apocalyptic number.

421135222123 is a deficient number, since it is larger than the sum of its proper divisors (103916483477).

421135222123 is a wasteful number, since it uses less digits than its factorization.

421135222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5469288617.

The product of its digits is 5760, while the sum is 28.

Adding to 421135222123 its reverse (321222531124), we get a palindrome (742357753247).

The spelling of 421135222123 in words is "four hundred twenty-one billion, one hundred thirty-five million, two hundred twenty-two thousand, one hundred twenty-three".