421314263 has 2 divisors, whose sum is σ = 421314264. Its totient is φ = 421314262.

The previous prime is 421314217. The next prime is 421314277. The reversal of 421314263 is 362413124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421314263 - 2⁶ = 421314199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421314203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210657131 + 210657132.

It is an arithmetic number, because the mean of its divisors is an integer number (210657132).

Almost surely, 2^421314263 is an apocalyptic number.

421314263 is a deficient number, since it is larger than the sum of its proper divisors (1).

421314263 is an equidigital number, since it uses as much as digits as its factorization.

421314263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 421314263 is about 20525.9412208064. The cubic root of 421314263 is about 749.6675640777.

Adding to 421314263 its reverse (362413124), we get a palindrome (783727387).

The spelling of 421314263 in words is "four hundred twenty-one million, three hundred fourteen thousand, two hundred sixty-three".