1200011233 has 2 divisors, whose sum is σ = 1200011234. Its totient is φ = 1200011232.

The previous prime is 1200011203. The next prime is 1200011273. The reversal of 1200011233 is 3321100021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1151109184 + 48902049 = 33928^2 + 6993^2 .

It is an emirp because it is prime and its reverse (3321100021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200011233 - 2⁵ = 1200011201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200011203) 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, 600005616 + 600005617.

It is an arithmetic number, because the mean of its divisors is an integer number (600005617).

Almost surely, 2^1200011233 is an apocalyptic number.

It is an amenable number.

1200011233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200011233 is an equidigital number, since it uses as much as digits as its factorization.

1200011233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1200011233 is about 34641.1782853875. The cubic root of 1200011233 is about 1062.6618849622.

Adding to 1200011233 its reverse (3321100021), we get a palindrome (4521111254).

The spelling of 1200011233 in words is "one billion, two hundred million, eleven thousand, two hundred thirty-three".