11543000535 has 48 divisors (see below), whose sum is σ = 22125830688. Its totient is φ = 5519923200.

The previous prime is 11543000531. The next prime is 11543000569. The reversal of 11543000535 is 53500034511.

It is not a de Polignac number, because 11543000535 - 2² = 11543000531 is a prime.

It is a super-2 number, since 2×11543000535² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11543000499 and 11543000508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543000531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123586 + ... + 195855.

It is an arithmetic number, because the mean of its divisors is an integer number (460954806).

Almost surely, 2^11543000535 is an apocalyptic number.

11543000535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11543000535 is a deficient number, since it is larger than the sum of its proper divisors (10582830153).

11543000535 is a wasteful number, since it uses less digits than its factorization.

11543000535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319536 (or 319533 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 11543000535 in words is "eleven billion, five hundred forty-three million, five hundred thirty-five", and thus it is an aban number.