423136111 has 2 divisors, whose sum is σ = 423136112. Its totient is φ = 423136110.

The previous prime is 423136079. The next prime is 423136127. The reversal of 423136111 is 111631324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423136111 - 2⁵ = 423136079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423136151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211568055 + 211568056.

It is an arithmetic number, because the mean of its divisors is an integer number (211568056).

Almost surely, 2^423136111 is an apocalyptic number.

423136111 is a deficient number, since it is larger than the sum of its proper divisors (1).

423136111 is an equidigital number, since it uses as much as digits as its factorization.

423136111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 423136111 is about 20570.2725067025. The cubic root of 423136111 is about 750.7465816116.

Adding to 423136111 its reverse (111631324), we get a palindrome (534767435).

The spelling of 423136111 in words is "four hundred twenty-three million, one hundred thirty-six thousand, one hundred eleven".