11311777 has 4 divisors (see below), whose sum is σ = 11587716. Its totient is φ = 11035840.

The previous prime is 11311759. The next prime is 11311787. The reversal of 11311777 is 77711311.

11311777 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77711311 = 19 ⋅4090069.

It can be written as a sum of positive squares in 2 ways, for example, as 3381921 + 7929856 = 1839^2 + 2816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11311777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137908 + ... + 137989.

It is an arithmetic number, because the mean of its divisors is an integer number (2896929).

Almost surely, 2^11311777 is an apocalyptic number.

It is an amenable number.

11311777 is a deficient number, since it is larger than the sum of its proper divisors (275939).

11311777 is an equidigital number, since it uses as much as digits as its factorization.

11311777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275938.

The product of its digits is 1029, while the sum is 28.

The square root of 11311777 is about 3363.2985297175. The cubic root of 11311777 is about 224.4796336701.

The spelling of 11311777 in words is "eleven million, three hundred eleven thousand, seven hundred seventy-seven".