1011223 has 4 divisors (see below), whose sum is σ = 1013328. Its totient is φ = 1009120.

The previous prime is 1011221. The next prime is 1011229. The reversal of 1011223 is 3221101.

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 1011223 - 2¹ = 1011221 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 (1011221) 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, 63 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (253332).

2^1011223 is an apocalyptic number.

1011223 is a deficient number, since it is larger than the sum of its proper divisors (2105).

1011223 is an equidigital number, since it uses as much as digits as its factorization.

1011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1011223 is about 1005.5958432691. The cubic root of 1011223 is about 100.3727091531.

Adding to 1011223 its reverse (3221101), we get a palindrome (4232324).

The spelling of 1011223 in words is "one million, eleven thousand, two hundred twenty-three".