135111552143 has 4 divisors (see below), whose sum is σ = 135147983880. Its totient is φ = 135075120408.

The previous prime is 135111552109. The next prime is 135111552179. The reversal of 135111552143 is 341255111531.

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 135111552143 - 2²⁶ = 135044443279 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 (135111552193) 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, 18210305 + ... + 18217722.

It is an arithmetic number, because the mean of its divisors is an integer number (33786995970).

Almost surely, 2^135111552143 is an apocalyptic number.

135111552143 is a deficient number, since it is larger than the sum of its proper divisors (36431737).

135111552143 is an equidigital number, since it uses as much as digits as its factorization.

135111552143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36431736.

The product of its digits is 9000, while the sum is 32.

Adding to 135111552143 its reverse (341255111531), we get a palindrome (476366663674).

The spelling of 135111552143 in words is "one hundred thirty-five billion, one hundred eleven million, five hundred fifty-two thousand, one hundred forty-three".