135423311 has 4 divisors (see below), whose sum is σ = 135469824. Its totient is φ = 135376800.

The previous prime is 135423289. The next prime is 135423313. The reversal of 135423311 is 113324531.

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 135423311 - 2⁶ = 135423247 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 (135423313) 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, 18575 + ... + 24816.

It is an arithmetic number, because the mean of its divisors is an integer number (33867456).

Almost surely, 2^135423311 is an apocalyptic number.

135423311 is a deficient number, since it is larger than the sum of its proper divisors (46513).

135423311 is an equidigital number, since it uses as much as digits as its factorization.

135423311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46512.

The product of its digits is 1080, while the sum is 23.

The square root of 135423311 is about 11637.1521859946. The cubic root of 135423311 is about 513.5284109397.

Adding to 135423311 its reverse (113324531), we get a palindrome (248747842).

The spelling of 135423311 in words is "one hundred thirty-five million, four hundred twenty-three thousand, three hundred eleven".