423955311 has 16 divisors (see below), whose sum is σ = 617099616. Its totient is φ = 257319936.

The previous prime is 423955309. The next prime is 423955319. The reversal of 423955311 is 113559324.

It is not a de Polignac number, because 423955311 - 2¹ = 423955309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423955319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71610 + ... + 77303.

It is an arithmetic number, because the mean of its divisors is an integer number (38568726).

Almost surely, 2^423955311 is an apocalyptic number.

423955311 is a deficient number, since it is larger than the sum of its proper divisors (193144305).

423955311 is a wasteful number, since it uses less digits than its factorization.

423955311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149002.

The product of its digits is 16200, while the sum is 33.

The square root of 423955311 is about 20590.1751085317. The cubic root of 423955311 is about 751.2307561033.

The spelling of 423955311 in words is "four hundred twenty-three million, nine hundred fifty-five thousand, three hundred eleven".