11091949153 has 2 divisors, whose sum is σ = 11091949154. Its totient is φ = 11091949152.

The previous prime is 11091949151. The next prime is 11091949159. The reversal of 11091949153 is 35194919011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7397376064 + 3694573089 = 86008^2 + 60783^2 .

It is a cyclic number.

It is not a de Polignac number, because 11091949153 - 2¹ = 11091949151 is a prime.

Together with 11091949151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11091949151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5545974576 + 5545974577.

It is an arithmetic number, because the mean of its divisors is an integer number (5545974577).

Almost surely, 2^11091949153 is an apocalyptic number.

It is an amenable number.

11091949153 is a deficient number, since it is larger than the sum of its proper divisors (1).

11091949153 is an equidigital number, since it uses as much as digits as its factorization.

11091949153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 43.

The spelling of 11091949153 in words is "eleven billion, ninety-one million, nine hundred forty-nine thousand, one hundred fifty-three".