11721363539 has 2 divisors, whose sum is σ = 11721363540. Its totient is φ = 11721363538.

The previous prime is 11721363499. The next prime is 11721363547. The reversal of 11721363539 is 93536312711.

11721363539 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 a cyclic number.

It is not a de Polignac number, because 11721363539 - 2¹² = 11721359443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11721363496 and 11721363505.

It is not a weakly prime, because it can be changed into another prime (11721363139) 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, 5860681769 + 5860681770.

It is an arithmetic number, because the mean of its divisors is an integer number (5860681770).

Almost surely, 2^11721363539 is an apocalyptic number.

11721363539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11721363539 is an equidigital number, since it uses as much as digits as its factorization.

11721363539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 41.

The spelling of 11721363539 in words is "eleven billion, seven hundred twenty-one million, three hundred sixty-three thousand, five hundred thirty-nine".