11120013 has 12 divisors (see below), whose sum is σ = 16123068. Its totient is φ = 7385280.

The previous prime is 11120009. The next prime is 11120033. The reversal of 11120013 is 31002111.

It can be written as a sum of positive squares in 2 ways, for example, as 6441444 + 4678569 = 2538^2 + 2163^2 .

It is not a de Polignac number, because 11120013 - 2² = 11120009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11119977 and 11120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331 + ... + 4727.

It is an arithmetic number, because the mean of its divisors is an integer number (1343589).

Almost surely, 2^11120013 is an apocalyptic number.

It is an amenable number.

11120013 is a deficient number, since it is larger than the sum of its proper divisors (5003055).

11120013 is a wasteful number, since it uses less digits than its factorization.

11120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684 (or 4681 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 11120013 is about 3334.6683493265. The cubic root of 11120013 is about 223.2038929640.

Adding to 11120013 its reverse (31002111), we get a palindrome (42122124).

The spelling of 11120013 in words is "eleven million, one hundred twenty thousand, thirteen".