11315737291 has 2 divisors, whose sum is σ = 11315737292. Its totient is φ = 11315737290.

The previous prime is 11315737243. The next prime is 11315737297. The reversal of 11315737291 is 19273751311.

It is a happy number.

11315737291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (19273751311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11315737291 - 2¹⁹ = 11315213003 is a prime.

It is not a weakly prime, because it can be changed into another prime (11315737297) 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, 5657868645 + 5657868646.

It is an arithmetic number, because the mean of its divisors is an integer number (5657868646).

Almost surely, 2^11315737291 is an apocalyptic number.

11315737291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11315737291 is an equidigital number, since it uses as much as digits as its factorization.

11315737291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 40.

The spelling of 11315737291 in words is "eleven billion, three hundred fifteen million, seven hundred thirty-seven thousand, two hundred ninety-one".