421363231 has 2 divisors, whose sum is σ = 421363232. Its totient is φ = 421363230.

The previous prime is 421363199. The next prime is 421363337. The reversal of 421363231 is 132363124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421363231 - 2⁵ = 421363199 is a prime.

It is a super-2 number, since 2×421363231² = 355093944877518722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421363196 and 421363205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421363031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210681615 + 210681616.

It is an arithmetic number, because the mean of its divisors is an integer number (210681616).

Almost surely, 2^421363231 is an apocalyptic number.

421363231 is a deficient number, since it is larger than the sum of its proper divisors (1).

421363231 is an equidigital number, since it uses as much as digits as its factorization.

421363231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

The square root of 421363231 is about 20527.1340181721. The cubic root of 421363231 is about 749.6966067681.

The spelling of 421363231 in words is "four hundred twenty-one million, three hundred sixty-three thousand, two hundred thirty-one".