11311111122233 has 8 divisors (see below), whose sum is σ = 12181288110600. Its totient is φ = 10440947207808.

The previous prime is 11311111122169. The next prime is 11311111122293. The reversal of 11311111122233 is 33222111111311.

It can be written as a sum of positive squares in 4 ways, for example, as 799302157369 + 10511808964864 = 894037^2 + 3242192^2 .

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

It is not a de Polignac number, because 11311111122233 - 2⁶ = 11311111122169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11311111122199 and 11311111122208.

It is not an unprimeable number, because it can be changed into a prime (11311111122293) 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, 1433438 + ... + 4967591.

It is an arithmetic number, because the mean of its divisors is an integer number (1522661013825).

Almost surely, 2^{11311111122233} is an apocalyptic number.

11311111122233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11311111122233 is a deficient number, since it is larger than the sum of its proper divisors (870176988367).

11311111122233 is a wasteful number, since it uses less digits than its factorization.

11311111122233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536971.

The product of its digits is 216, while the sum is 23.

Adding to 11311111122233 its reverse (33222111111311), we get a palindrome (44533222233544).

The spelling of 11311111122233 in words is "eleven trillion, three hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, two hundred thirty-three".