11101000643 has 2 divisors, whose sum is σ = 11101000644. Its totient is φ = 11101000642.

The previous prime is 11101000613. The next prime is 11101000649. The reversal of 11101000643 is 34600010111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11101000643 - 2¹² = 11100996547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11101000649) 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, 5550500321 + 5550500322.

It is an arithmetic number, because the mean of its divisors is an integer number (5550500322).

Almost surely, 2^11101000643 is an apocalyptic number.

11101000643 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101000643 is an equidigital number, since it uses as much as digits as its factorization.

11101000643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11101000643 its reverse (34600010111), we get a palindrome (45701010754).

The spelling of 11101000643 in words is "eleven billion, one hundred one million, six hundred forty-three", and thus it is an aban number.