11522442397 has 2 divisors, whose sum is σ = 11522442398. Its totient is φ = 11522442396.

The previous prime is 11522442377. The next prime is 11522442409. The reversal of 11522442397 is 79324422511.

11522442397 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 can be written as a sum of positive squares in only one way, i.e., 11317980996 + 204461401 = 106386^2 + 14299^2 .

It is a cyclic number.

It is not a de Polignac number, because 11522442397 - 2¹⁵ = 11522409629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11522442307) 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, 5761221198 + 5761221199.

It is an arithmetic number, because the mean of its divisors is an integer number (5761221199).

Almost surely, 2^11522442397 is an apocalyptic number.

It is an amenable number.

11522442397 is a deficient number, since it is larger than the sum of its proper divisors (1).

11522442397 is an equidigital number, since it uses as much as digits as its factorization.

11522442397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The spelling of 11522442397 in words is "eleven billion, five hundred twenty-two million, four hundred forty-two thousand, three hundred ninety-seven".