11011144 has 8 divisors (see below), whose sum is σ = 20645910. Its totient is φ = 5505568.

The previous prime is 11011141. The next prime is 11011151. The reversal of 11011144 is 44111011.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 5008644 = 2450^2 + 2238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11011141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688189 + ... + 688204.

Almost surely, 2^11011144 is an apocalyptic number.

It is an amenable number.

11011144 is a deficient number, since it is larger than the sum of its proper divisors (9634766).

11011144 is a wasteful number, since it uses less digits than its factorization.

11011144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376399 (or 1376395 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 11011144 is about 3318.3043862792. The cubic root of 11011144 is about 222.4730868428.

Adding to 11011144 its reverse (44111011), we get a palindrome (55122155).

The spelling of 11011144 in words is "eleven million, eleven thousand, one hundred forty-four".