1200111223 has 2 divisors, whose sum is σ = 1200111224. Its totient is φ = 1200111222.

The previous prime is 1200111203. The next prime is 1200111229. The reversal of 1200111223 is 3221110021.

It is a strong prime.

It is an emirp because it is prime and its reverse (3221110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200111223 - 2⁵ = 1200111191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200111229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600055611 + 600055612.

It is an arithmetic number, because the mean of its divisors is an integer number (600055612).

Almost surely, 2^1200111223 is an apocalyptic number.

1200111223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200111223 is an equidigital number, since it uses as much as digits as its factorization.

1200111223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1200111223 is about 34642.6214799054. The cubic root of 1200111223 is about 1062.6913993000.

Adding to 1200111223 its reverse (3221110021), we get a palindrome (4421221244).

The spelling of 1200111223 in words is "one billion, two hundred million, one hundred eleven thousand, two hundred twenty-three".