11310211223 has 4 divisors (see below), whose sum is σ = 11310508248. Its totient is φ = 11309914200.

The previous prime is 11310211219. The next prime is 11310211243. The reversal of 11310211223 is 32211201311.

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 11310211223 - 2² = 11310211219 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 (11310211243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81236 + ... + 170937.

It is an arithmetic number, because the mean of its divisors is an integer number (2827627062).

Almost surely, 2^11310211223 is an apocalyptic number.

11310211223 is a deficient number, since it is larger than the sum of its proper divisors (297025).

11310211223 is an equidigital number, since it uses as much as digits as its factorization.

11310211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297024.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11310211223 its reverse (32211201311), we get a palindrome (43521412534).

The spelling of 11310211223 in words is "eleven billion, three hundred ten million, two hundred eleven thousand, two hundred twenty-three".