423421311 has 4 divisors (see below), whose sum is σ = 564561752. Its totient is φ = 282280872.

The previous prime is 423421267. The next prime is 423421331. The reversal of 423421311 is 113124324.

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

It is not a de Polignac number, because 423421311 - 2⁶ = 423421247 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 (423421331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70570216 + ... + 70570221.

It is an arithmetic number, because the mean of its divisors is an integer number (141140438).

Almost surely, 2^423421311 is an apocalyptic number.

423421311 is a deficient number, since it is larger than the sum of its proper divisors (141140441).

423421311 is a wasteful number, since it uses less digits than its factorization.

423421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141140440.

The product of its digits is 576, while the sum is 21.

The square root of 423421311 is about 20577.2036729970. The cubic root of 423421311 is about 750.9152151651.

Adding to 423421311 its reverse (113124324), we get a palindrome (536545635).

The spelling of 423421311 in words is "four hundred twenty-three million, four hundred twenty-one thousand, three hundred eleven".