421110123 has 16 divisors (see below), whose sum is σ = 642428160. Its totient is φ = 240358176.

The previous prime is 421110121. The next prime is 421110143. The reversal of 421110123 is 321011124.

It is not a de Polignac number, because 421110123 - 2¹ = 421110121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421110121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7993 + ... + 30101.

It is an arithmetic number, because the mean of its divisors is an integer number (40151760).

Almost surely, 2^421110123 is an apocalyptic number.

421110123 is a deficient number, since it is larger than the sum of its proper divisors (221318037).

421110123 is a wasteful number, since it uses less digits than its factorization.

421110123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23026.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 421110123 is about 20520.9678865301. The cubic root of 421110123 is about 749.5464653526.

Adding to 421110123 its reverse (321011124), we get a palindrome (742121247).

It can be divided in two parts, 4211101 and 23, that added together give a palindrome (4211124).

The spelling of 421110123 in words is "four hundred twenty-one million, one hundred ten thousand, one hundred twenty-three".