11187380541 has 8 divisors (see below), whose sum is σ = 15161040544. Its totient is φ = 7335987120.

The previous prime is 11187380539. The next prime is 11187380579. The reversal of 11187380541 is 14508378111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11187380541 - 2¹ = 11187380539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11187380541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11187380591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30566431 + ... + 30566796.

It is an arithmetic number, because the mean of its divisors is an integer number (1895130068).

Almost surely, 2^11187380541 is an apocalyptic number.

It is an amenable number.

11187380541 is a deficient number, since it is larger than the sum of its proper divisors (3973660003).

11187380541 is an equidigital number, since it uses as much as digits as its factorization.

11187380541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61133291.

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 11187380541 in words is "eleven billion, one hundred eighty-seven million, three hundred eighty thousand, five hundred forty-one".