11311144 has 16 divisors (see below), whose sum is σ = 22840020. Its totient is φ = 5220480.

The previous prime is 11311133. The next prime is 11311177. The reversal of 11311144 is 44111311.

It can be written as a sum of positive squares in 2 ways, for example, as 11303044 + 8100 = 3362^2 + 90^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54277 + ... + 54484.

Almost surely, 2^11311144 is an apocalyptic number.

It is an amenable number.

11311144 is an abundant number, since it is smaller than the sum of its proper divisors (11528876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311144 is a wasteful number, since it uses less digits than its factorization.

11311144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108780 (or 108776 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 11311144 is about 3363.2044243548. The cubic root of 11311144 is about 224.4754463452.

Adding to 11311144 its reverse (44111311), we get a palindrome (55422455).

The spelling of 11311144 in words is "eleven million, three hundred eleven thousand, one hundred forty-four".