1213296911 has 2 divisors, whose sum is σ = 1213296912. Its totient is φ = 1213296910.

The previous prime is 1213296899. The next prime is 1213296923. The reversal of 1213296911 is 1196923121.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1213296899) and next prime (1213296923).

It is an emirp because it is prime and its reverse (1196923121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213296911 - 2¹⁴ = 1213280527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213296961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606648455 + 606648456.

It is an arithmetic number, because the mean of its divisors is an integer number (606648456).

Almost surely, 2^1213296911 is an apocalyptic number.

1213296911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213296911 is an equidigital number, since it uses as much as digits as its factorization.

1213296911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 35.

The square root of 1213296911 is about 34832.4117884478. The cubic root of 1213296911 is about 1066.5691815965.

The spelling of 1213296911 in words is "one billion, two hundred thirteen million, two hundred ninety-six thousand, nine hundred eleven".