2011302223 has 4 divisors (see below), whose sum is σ = 2298631120. Its totient is φ = 1723973328.

The previous prime is 2011302217. The next prime is 2011302239. The reversal of 2011302223 is 3222031102.

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

It is not a de Polignac number, because 2011302223 - 2¹³ = 2011294031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011302197 and 2011302206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011302023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143664438 + ... + 143664451.

It is an arithmetic number, because the mean of its divisors is an integer number (574657780).

Almost surely, 2^2011302223 is an apocalyptic number.

2011302223 is a deficient number, since it is larger than the sum of its proper divisors (287328897).

2011302223 is an equidigital number, since it uses as much as digits as its factorization.

2011302223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287328896.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2011302223 is about 44847.5442248514. The cubic root of 2011302223 is about 1262.2899113607.

Adding to 2011302223 its reverse (3222031102), we get a palindrome (5233333325).

The spelling of 2011302223 in words is "two billion, eleven million, three hundred two thousand, two hundred twenty-three".