421504103 has 8 divisors (see below), whose sum is σ = 456678288. Its totient is φ = 387483264.

The previous prime is 421504099. The next prime is 421504121. The reversal of 421504103 is 301405124.

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 421504103 - 2² = 421504099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421504123) 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, 287576 + ... + 289037.

It is an arithmetic number, because the mean of its divisors is an integer number (57084786).

Almost surely, 2^421504103 is an apocalyptic number.

421504103 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

421504103 is a deficient number, since it is larger than the sum of its proper divisors (35174185).

421504103 is a wasteful number, since it uses less digits than its factorization.

421504103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576673.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 421504103 is about 20530.5650920767. The cubic root of 421504103 is about 749.7801447430.

Adding to 421504103 its reverse (301405124), we get a palindrome (722909227).

The spelling of 421504103 in words is "four hundred twenty-one million, five hundred four thousand, one hundred three".