421121103 has 16 divisors (see below), whose sum is σ = 606328800. Its totient is φ = 258447744.

The previous prime is 421121101. The next prime is 421121119. The reversal of 421121103 is 301121124.

It is not a de Polignac number, because 421121103 - 2¹ = 421121101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421121101) 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, 73 + ... + 29021.

It is an arithmetic number, because the mean of its divisors is an integer number (37895550).

Almost surely, 2^421121103 is an apocalyptic number.

421121103 is a deficient number, since it is larger than the sum of its proper divisors (185207697).

421121103 is a wasteful number, since it uses less digits than its factorization.

421121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29338.

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

The square root of 421121103 is about 20521.2354160270. The cubic root of 421121103 is about 749.5529798391.

Adding to 421121103 its reverse (301121124), we get a palindrome (722242227).

The spelling of 421121103 in words is "four hundred twenty-one million, one hundred twenty-one thousand, one hundred three".