421413303 has 4 divisors (see below), whose sum is σ = 561884408. Its totient is φ = 280942200.

The previous prime is 421413269. The next prime is 421413347. The reversal of 421413303 is 303314124.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 421413303 - 2¹² = 421409207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421413303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421413203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70235548 + ... + 70235553.

It is an arithmetic number, because the mean of its divisors is an integer number (140471102).

Almost surely, 2^421413303 is an apocalyptic number.

421413303 is a deficient number, since it is larger than the sum of its proper divisors (140471105).

421413303 is a wasteful number, since it uses less digits than its factorization.

421413303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140471104.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 421413303 is about 20528.3536358861. The cubic root of 421413303 is about 749.7263019091.

Adding to 421413303 its reverse (303314124), we get a palindrome (724727427).

The spelling of 421413303 in words is "four hundred twenty-one million, four hundred thirteen thousand, three hundred three".