421421113 has 4 divisors (see below), whose sum is σ = 431221648. Its totient is φ = 411620580.

The previous prime is 421421093. The next prime is 421421131. The reversal of 421421113 is 311124124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421421113 - 2⁵ = 421421081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421421153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4900203 + ... + 4900288.

It is an arithmetic number, because the mean of its divisors is an integer number (107805412).

Almost surely, 2^421421113 is an apocalyptic number.

421421113 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

421421113 is a deficient number, since it is larger than the sum of its proper divisors (9800535).

421421113 is an equidigital number, since it uses as much as digits as its factorization.

421421113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9800534.

The product of its digits is 192, while the sum is 19.

The square root of 421421113 is about 20528.5438597091. The cubic root of 421421113 is about 749.7309334084.

Adding to 421421113 its reverse (311124124), we get a palindrome (732545237).

The spelling of 421421113 in words is "four hundred twenty-one million, four hundred twenty-one thousand, one hundred thirteen".