11315722729 has 2 divisors, whose sum is σ = 11315722730. Its totient is φ = 11315722728.

The previous prime is 11315722727. The next prime is 11315722741. The reversal of 11315722729 is 92722751311.

11315722729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8510431504 + 2805291225 = 92252^2 + 52965^2 .

It is a cyclic number.

It is not a de Polignac number, because 11315722729 - 2¹ = 11315722727 is a prime.

Together with 11315722727, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11315722691 and 11315722700.

It is not a weakly prime, because it can be changed into another prime (11315722727) 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, 5657861364 + 5657861365.

It is an arithmetic number, because the mean of its divisors is an integer number (5657861365).

Almost surely, 2^11315722729 is an apocalyptic number.

It is an amenable number.

11315722729 is a deficient number, since it is larger than the sum of its proper divisors (1).

11315722729 is an equidigital number, since it uses as much as digits as its factorization.

11315722729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The spelling of 11315722729 in words is "eleven billion, three hundred fifteen million, seven hundred twenty-two thousand, seven hundred twenty-nine".