11072512543 has 4 divisors (see below), whose sum is σ = 11281427928. Its totient is φ = 10863597160.

The previous prime is 11072512499. The next prime is 11072512567. The reversal of 11072512543 is 34521527011.

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 11072512543 - 2²⁹ = 10535641631 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 (11072510543) 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, 104457613 + ... + 104457718.

It is an arithmetic number, because the mean of its divisors is an integer number (2820356982).

Almost surely, 2^11072512543 is an apocalyptic number.

11072512543 is a deficient number, since it is larger than the sum of its proper divisors (208915385).

11072512543 is an equidigital number, since it uses as much as digits as its factorization.

11072512543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208915384.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 11072512543 in words is "eleven billion, seventy-two million, five hundred twelve thousand, five hundred forty-three".