11223536851 has 2 divisors, whose sum is σ = 11223536852. Its totient is φ = 11223536850.

The previous prime is 11223536839. The next prime is 11223536869. The reversal of 11223536851 is 15863532211.

It is a weak prime.

It is an emirp because it is prime and its reverse (15863532211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223536851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11223536851.

It is not a weakly prime, because it can be changed into another prime (11223536881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611768425 + 5611768426.

It is an arithmetic number, because the mean of its divisors is an integer number (5611768426).

Almost surely, 2^11223536851 is an apocalyptic number.

11223536851 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223536851 is an equidigital number, since it uses as much as digits as its factorization.

11223536851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The spelling of 11223536851 in words is "eleven billion, two hundred twenty-three million, five hundred thirty-six thousand, eight hundred fifty-one".