11071021243 has 2 divisors, whose sum is σ = 11071021244. Its totient is φ = 11071021242.

The previous prime is 11071021201. The next prime is 11071021249. The reversal of 11071021243 is 34212017011.

It is a happy number.

11071021243 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 a de Polignac number, because none of the positive numbers 2^k-11071021243 is a prime.

It is a super-2 number, since 2×11071021243² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11071021249) 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, 5535510621 + 5535510622.

It is an arithmetic number, because the mean of its divisors is an integer number (5535510622).

Almost surely, 2^11071021243 is an apocalyptic number.

11071021243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11071021243 is an equidigital number, since it uses as much as digits as its factorization.

11071021243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 11071021243 its reverse (34212017011), we get a palindrome (45283038254).

The spelling of 11071021243 in words is "eleven billion, seventy-one million, twenty-one thousand, two hundred forty-three".