135523230311 has 8 divisors (see below), whose sum is σ = 157005386784. Its totient is φ = 114571497600.

The previous prime is 135523230299. The next prime is 135523230313. The reversal of 135523230311 is 113032325531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135523230311 - 2³⁰ = 134449488487 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 (135523230313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132605390 + ... + 132606411.

It is an arithmetic number, because the mean of its divisors is an integer number (19625673348).

Almost surely, 2^135523230311 is an apocalyptic number.

135523230311 is a deficient number, since it is larger than the sum of its proper divisors (21482156473).

135523230311 is an equidigital number, since it uses as much as digits as its factorization.

135523230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265211881.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 135523230311 its reverse (113032325531), we get a palindrome (248555555842).

The spelling of 135523230311 in words is "one hundred thirty-five billion, five hundred twenty-three million, two hundred thirty thousand, three hundred eleven".