135500240323 has 24 divisors (see below), whose sum is σ = 159088194720. Its totient is φ = 115064167680.

The previous prime is 135500240321. The next prime is 135500240333. The reversal of 135500240323 is 323042005531.

It is not a de Polignac number, because 135500240323 - 2¹ = 135500240321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135500240291 and 135500240300.

It is not an unprimeable number, because it can be changed into a prime (135500240321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17664733 + ... + 17672401.

It is an arithmetic number, because the mean of its divisors is an integer number (6628674780).

Almost surely, 2^135500240323 is an apocalyptic number.

135500240323 is a deficient number, since it is larger than the sum of its proper divisors (23587954397).

135500240323 is a wasteful number, since it uses less digits than its factorization.

135500240323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987 (or 10980 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 135500240323 its reverse (323042005531), we get a palindrome (458542245854).

The spelling of 135500240323 in words is "one hundred thirty-five billion, five hundred million, two hundred forty thousand, three hundred twenty-three".