11111100233 has 2 divisors, whose sum is σ = 11111100234. Its totient is φ = 11111100232.

The previous prime is 11111100151. The next prime is 11111100251. The reversal of 11111100233 is 33200111111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11102415424 + 8684809 = 105368^2 + 2947^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111100233 - 2²⁰ = 11110051657 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111106233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555550116 + 5555550117.

It is an arithmetic number, because the mean of its divisors is an integer number (5555550117).

Almost surely, 2^11111100233 is an apocalyptic number.

It is an amenable number.

11111100233 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111100233 is an equidigital number, since it uses as much as digits as its factorization.

11111100233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11111100233 its reverse (33200111111), we get a palindrome (44311211344).

The spelling of 11111100233 in words is "eleven billion, one hundred eleven million, one hundred thousand, two hundred thirty-three".