11543140135 has 16 divisors (see below), whose sum is σ = 14376146400. Its totient is φ = 8887003776.

The previous prime is 11543140087. The next prime is 11543140153. The reversal of 11543140135 is 53104134511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11543140135 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85140 + ... + 174169.

It is an arithmetic number, because the mean of its divisors is an integer number (898509150).

Almost surely, 2^11543140135 is an apocalyptic number.

11543140135 is a deficient number, since it is larger than the sum of its proper divisors (2833006265).

11543140135 is a wasteful number, since it uses less digits than its factorization.

11543140135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259650.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 11543140135 its reverse (53104134511), we get a palindrome (64647274646).

The spelling of 11543140135 in words is "eleven billion, five hundred forty-three million, one hundred forty thousand, one hundred thirty-five".