1211300263 has 2 divisors, whose sum is σ = 1211300264. Its totient is φ = 1211300262.

The previous prime is 1211300203. The next prime is 1211300281. The reversal of 1211300263 is 3620031121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211300263 - 2⁹ = 1211299751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211300263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211300203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605650131 + 605650132.

It is an arithmetic number, because the mean of its divisors is an integer number (605650132).

Almost surely, 2^1211300263 is an apocalyptic number.

1211300263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211300263 is an equidigital number, since it uses as much as digits as its factorization.

1211300263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1211300263 is about 34803.7392100332. The cubic root of 1211300263 is about 1065.9837979649.

Adding to 1211300263 its reverse (3620031121), we get a palindrome (4831331384).

The spelling of 1211300263 in words is "one billion, two hundred eleven million, three hundred thousand, two hundred sixty-three".