423111111331 has 2 divisors, whose sum is σ = 423111111332. Its totient is φ = 423111111330.

The previous prime is 423111111289. The next prime is 423111111361. The reversal of 423111111331 is 133111111324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423111111331 - 2¹¹ = 423111109283 is a prime.

It is a super-2 number, since 2×423111111331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423111111361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211555555665 + 211555555666.

It is an arithmetic number, because the mean of its divisors is an integer number (211555555666).

Almost surely, 2^423111111331 is an apocalyptic number.

423111111331 is a deficient number, since it is larger than the sum of its proper divisors (1).

423111111331 is an equidigital number, since it uses as much as digits as its factorization.

423111111331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 22.

Adding to 423111111331 its reverse (133111111324), we get a palindrome (556222222655).

The spelling of 423111111331 in words is "four hundred twenty-three billion, one hundred eleven million, one hundred eleven thousand, three hundred thirty-one".