421392311 has 4 divisors (see below), whose sum is σ = 446180112. Its totient is φ = 396604512.

The previous prime is 421392299. The next prime is 421392329. The reversal of 421392311 is 113293124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421392311 - 2⁶ = 421392247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421392341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12393875 + ... + 12393908.

It is an arithmetic number, because the mean of its divisors is an integer number (111545028).

Almost surely, 2^421392311 is an apocalyptic number.

421392311 is a deficient number, since it is larger than the sum of its proper divisors (24787801).

421392311 is a wasteful number, since it uses less digits than its factorization.

421392311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24787800.

The product of its digits is 1296, while the sum is 26.

The square root of 421392311 is about 20527.8423366899. The cubic root of 421392311 is about 749.7138529144.

The spelling of 421392311 in words is "four hundred twenty-one million, three hundred ninety-two thousand, three hundred eleven".