11311201223 has 8 divisors (see below), whose sum is σ = 13170994848. Its totient is φ = 9512384544.

The previous prime is 11311201207. The next prime is 11311201241. The reversal of 11311201223 is 32210211311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11311201223 - 2⁴ = 11311201207 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 (11311201283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15243836 + ... + 15244577.

It is an arithmetic number, because the mean of its divisors is an integer number (1646374356).

Almost surely, 2^11311201223 is an apocalyptic number.

11311201223 is a deficient number, since it is larger than the sum of its proper divisors (1859793625).

11311201223 is an equidigital number, since it uses as much as digits as its factorization.

11311201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30488473.

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

Adding to 11311201223 its reverse (32210211311), we get a palindrome (43521412534).

The spelling of 11311201223 in words is "eleven billion, three hundred eleven million, two hundred one thousand, two hundred twenty-three".