11277320111 has 4 divisors (see below), whose sum is σ = 11321200992. Its totient is φ = 11233439232.

The previous prime is 11277320099. The next prime is 11277320129. The reversal of 11277320111 is 11102377211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11277320111 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 (11277320011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21940055 + ... + 21940568.

It is an arithmetic number, because the mean of its divisors is an integer number (2830300248).

Almost surely, 2^11277320111 is an apocalyptic number.

11277320111 is a deficient number, since it is larger than the sum of its proper divisors (43880881).

11277320111 is an equidigital number, since it uses as much as digits as its factorization.

11277320111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43880880.

The product of its (nonzero) digits is 588, while the sum is 26.

Adding to 11277320111 its reverse (11102377211), we get a palindrome (22379697322).

The spelling of 11277320111 in words is "eleven billion, two hundred seventy-seven million, three hundred twenty thousand, one hundred eleven".