11013889 has 2 divisors, whose sum is σ = 11013890. Its totient is φ = 11013888.

The previous prime is 11013887. The next prime is 11013911. The reversal of 11013889 is 98831011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8151025 + 2862864 = 2855^2 + 1692^2 .

It is an emirp because it is prime and its reverse (98831011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11013889 - 2¹ = 11013887 is a prime.

Together with 11013887, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11013889.

It is not a weakly prime, because it can be changed into another prime (11013883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506944 + 5506945.

It is an arithmetic number, because the mean of its divisors is an integer number (5506945).

Almost surely, 2^11013889 is an apocalyptic number.

It is an amenable number.

11013889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013889 is an equidigital number, since it uses as much as digits as its factorization.

11013889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 11013889 is about 3318.7179753634. The cubic root of 11013889 is about 222.4915722937.

The spelling of 11013889 in words is "eleven million, thirteen thousand, eight hundred eighty-nine".