11112321089 has 2 divisors, whose sum is σ = 11112321090. Its totient is φ = 11112321088.

The previous prime is 11112321083. The next prime is 11112321137. The reversal of 11112321089 is 98012321111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9758081089 + 1354240000 = 98783^2 + 36800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112321089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11112321083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556160544 + 5556160545.

It is an arithmetic number, because the mean of its divisors is an integer number (5556160545).

Almost surely, 2^11112321089 is an apocalyptic number.

It is an amenable number.

11112321089 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112321089 is an equidigital number, since it uses as much as digits as its factorization.

11112321089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 11112321089 in words is "eleven billion, one hundred twelve million, three hundred twenty-one thousand, eighty-nine".