11213279 has 16 divisors (see below), whose sum is σ = 14121216. Its totient is φ = 8649600.

The previous prime is 11213233. The next prime is 11213281. The reversal of 11213279 is 97231211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11213279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7559 + ... + 8919.

It is an arithmetic number, because the mean of its divisors is an integer number (882576).

Almost surely, 2^11213279 is an apocalyptic number.

11213279 is a deficient number, since it is larger than the sum of its proper divisors (2907937).

11213279 is a wasteful number, since it uses less digits than its factorization.

11213279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its digits is 756, while the sum is 26.

The square root of 11213279 is about 3348.6234485233. The cubic root of 11213279 is about 223.8261765322.

It can be divided in two parts, 112132 and 79, that added together give a palindrome (112211).

The spelling of 11213279 in words is "eleven million, two hundred thirteen thousand, two hundred seventy-nine".