1200211263 has 12 divisors (see below), whose sum is σ = 1797847688. Its totient is φ = 800140680.

The previous prime is 1200211261. The next prime is 1200211301. The reversal of 1200211263 is 3621120021.

It is not a de Polignac number, because 1200211263 - 2¹ = 1200211261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200211261) 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 in 11 ways as a sum of consecutive naturals, for example, 2469328 + ... + 2469813.

Almost surely, 2^1200211263 is an apocalyptic number.

1200211263 is a deficient number, since it is larger than the sum of its proper divisors (597636425).

1200211263 is an frugal number, since it uses more digits than its factorization.

1200211263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939156 (or 4939144 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1200211263 is about 34644.0653359273. The cubic root of 1200211263 is about 1062.7209267559.

Adding to 1200211263 its reverse (3621120021), we get a palindrome (4821331284).

The spelling of 1200211263 in words is "one billion, two hundred million, two hundred eleven thousand, two hundred sixty-three".