11279013 has 16 divisors (see below), whose sum is σ = 15482880. Its totient is φ = 7300016.

The previous prime is 11279003. The next prime is 11279017. The reversal of 11279013 is 31097211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11279013 is a prime.

It is a super-2 number, since 2×11279013² = 254432268508338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11279017) 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 15 ways as a sum of consecutive naturals, for example, 23308 + ... + 23786.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^11279013 is an apocalyptic number.

It is an amenable number.

11279013 is a deficient number, since it is larger than the sum of its proper divisors (4203867).

11279013 is a wasteful number, since it uses less digits than its factorization.

11279013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 11279013 is about 3358.4241840482. The cubic root of 11279013 is about 224.2626927140.

The spelling of 11279013 in words is "eleven million, two hundred seventy-nine thousand, thirteen".