421420444024123 has 8 divisors (see below), whose sum is σ = 427555048605696. Its totient is φ = 415295615707200.

The previous prime is 421420444024109. The next prime is 421420444024241. The reversal of 421420444024123 is 321420444024124.

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 421420444024123 - 2²⁵ = 421420410469691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421420444024823) 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, 2443979323 + ... + 2444151748.

It is an arithmetic number, because the mean of its divisors is an integer number (53444381075712).

Almost surely, 2^{421420444024123} is an apocalyptic number.

421420444024123 is a deficient number, since it is larger than the sum of its proper divisors (6134604581573).

421420444024123 is a wasteful number, since it uses less digits than its factorization.

421420444024123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888132325.

The product of its (nonzero) digits is 196608, while the sum is 37.

Adding to 421420444024123 its reverse (321420444024124), we get a palindrome (742840888048247).

Subtracting from 421420444024123 its reverse (321420444024124), we obtain a palindrome (99999999999999).

The spelling of 421420444024123 in words is "four hundred twenty-one trillion, four hundred twenty billion, four hundred forty-four million, twenty-four thousand, one hundred twenty-three".