11180380811 has 8 divisors (see below), whose sum is σ = 11237732064. Its totient is φ = 11123110080.

The previous prime is 11180380801. The next prime is 11180380823. The reversal of 11180380811 is 11808308111.

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

It is a cyclic number.

It is not a de Polignac number, because 11180380811 - 2¹⁸ = 11180118667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11180380801) 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, 268826 + ... + 307616.

It is an arithmetic number, because the mean of its divisors is an integer number (1404716508).

Almost surely, 2^11180380811 is an apocalyptic number.

11180380811 is a deficient number, since it is larger than the sum of its proper divisors (57351253).

11180380811 is a wasteful number, since it uses less digits than its factorization.

11180380811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40261.

The product of its (nonzero) digits is 1536, while the sum is 32.

Adding to 11180380811 its reverse (11808308111), we get a palindrome (22988688922).

The spelling of 11180380811 in words is "eleven billion, one hundred eighty million, three hundred eighty thousand, eight hundred eleven".