11420223 has 4 divisors (see below), whose sum is σ = 15226968. Its totient is φ = 7613480.

The previous prime is 11420203. The next prime is 11420239. The reversal of 11420223 is 32202411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11420223 - 2¹² = 11416127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420203) 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 3 ways as a sum of consecutive naturals, for example, 1903368 + ... + 1903373.

It is an arithmetic number, because the mean of its divisors is an integer number (3806742).

Almost surely, 2^11420223 is an apocalyptic number.

11420223 is a deficient number, since it is larger than the sum of its proper divisors (3806745).

11420223 is an equidigital number, since it uses as much as digits as its factorization.

11420223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806744.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 11420223 is about 3379.3820441021. The cubic root of 11420223 is about 225.1947153950.

Adding to 11420223 its reverse (32202411), we get a palindrome (43622634).

The spelling of 11420223 in words is "eleven million, four hundred twenty thousand, two hundred twenty-three".