421042313 has 6 divisors (see below), whose sum is σ = 428061582. Its totient is φ = 414136320.

The previous prime is 421042273. The next prime is 421042327. The reversal of 421042313 is 313240124.

It can be written as a sum of positive squares in 3 ways, for example, as 46348864 + 374693449 = 6808^2 + 19357^2 .

It is not a de Polignac number, because 421042313 - 2⁶ = 421042249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421042333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52856 + ... + 60297.

It is an arithmetic number, because the mean of its divisors is an integer number (71343597).

Almost surely, 2^421042313 is an apocalyptic number.

It is an amenable number.

421042313 is a deficient number, since it is larger than the sum of its proper divisors (7019269).

421042313 is an equidigital number, since it uses as much as digits as its factorization.

421042313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113275 (or 113214 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 421042313 is about 20519.3156074953. The cubic root of 421042313 is about 749.5062308459.

Adding to 421042313 its reverse (313240124), we get a palindrome (734282437).

The spelling of 421042313 in words is "four hundred twenty-one million, forty-two thousand, three hundred thirteen".