421212303 has 12 divisors (see below), whose sum is σ = 608616840. Its totient is φ = 280716336.

The previous prime is 421212287. The next prime is 421212307. The reversal of 421212303 is 303212124.

421212303 is a `hidden beast` number, since 421 + 212 + 30 + 3 = 666.

It is not a de Polignac number, because 421212303 - 2⁴ = 421212287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421212307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32425 + ... + 43517.

It is an arithmetic number, because the mean of its divisors is an integer number (50718070).

Almost surely, 2^421212303 is an apocalyptic number.

421212303 is a deficient number, since it is larger than the sum of its proper divisors (187404537).

421212303 is a wasteful number, since it uses less digits than its factorization.

421212303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15318 (or 15315 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 421212303 is about 20523.4573841738. The cubic root of 421212303 is about 749.6070848595.

Adding to 421212303 its reverse (303212124), we get a palindrome (724424427).

The spelling of 421212303 in words is "four hundred twenty-one million, two hundred twelve thousand, three hundred three".