11131111223 has 8 divisors (see below), whose sum is σ = 11255707008. Its totient is φ = 11006833464.

The previous prime is 11131111207. The next prime is 11131111249. The reversal of 11131111223 is 32211113111.

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 11131111223 - 2⁴ = 11131111207 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 (11131111423) 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, 8765 + ... + 149462.

It is an arithmetic number, because the mean of its divisors is an integer number (1406963376).

Almost surely, 2^11131111223 is an apocalyptic number.

11131111223 is a deficient number, since it is larger than the sum of its proper divisors (124595785).

11131111223 is a wasteful number, since it uses less digits than its factorization.

11131111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159013.

The product of its digits is 36, while the sum is 17.

Adding to 11131111223 its reverse (32211113111), we get a palindrome (43342224334).

The spelling of 11131111223 in words is "eleven billion, one hundred thirty-one million, one hundred eleven thousand, two hundred twenty-three".