11021313223 has 16 divisors (see below), whose sum is σ = 12091955200. Its totient is φ = 10006273440.

The previous prime is 11021313217. The next prime is 11021313239. The reversal of 11021313223 is 32231312011.

It is a cyclic number.

It is not a de Polignac number, because 11021313223 - 2²¹ = 11019216071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021313223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021313253) 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, 30168 + ... + 151501.

It is an arithmetic number, because the mean of its divisors is an integer number (755747200).

Almost surely, 2^11021313223 is an apocalyptic number.

11021313223 is a deficient number, since it is larger than the sum of its proper divisors (1070641977).

11021313223 is a wasteful number, since it uses less digits than its factorization.

11021313223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181822.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11021313223 its reverse (32231312011), we get a palindrome (43252625234).

The spelling of 11021313223 in words is "eleven billion, twenty-one million, three hundred thirteen thousand, two hundred twenty-three".