11131122233 has 8 divisors (see below), whose sum is σ = 13877762880. Its totient is φ = 8673601680.

The previous prime is 11131122209. The next prime is 11131122239. The reversal of 11131122233 is 33222113111.

It is a happy number.

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 11131122233 - 2²⁰ = 11130073657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11131122239) 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, 72279938 + ... + 72280091.

It is an arithmetic number, because the mean of its divisors is an integer number (1734720360).

Almost surely, 2^11131122233 is an apocalyptic number.

It is an amenable number.

11131122233 is a deficient number, since it is larger than the sum of its proper divisors (2746640647).

11131122233 is a wasteful number, since it uses less digits than its factorization.

11131122233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144560047.

The product of its digits is 216, while the sum is 20.

Adding to 11131122233 its reverse (33222113111), we get a palindrome (44353235344).

The spelling of 11131122233 in words is "eleven billion, one hundred thirty-one million, one hundred twenty-two thousand, two hundred thirty-three".