11320235989 has 2 divisors, whose sum is σ = 11320235990. Its totient is φ = 11320235988.

The previous prime is 11320235981. The next prime is 11320235999. The reversal of 11320235989 is 98953202311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6155657764 + 5164578225 = 78458^2 + 71865^2 .

It is a cyclic number.

It is not a de Polignac number, because 11320235989 - 2³ = 11320235981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11320235981) 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, 5660117994 + 5660117995.

It is an arithmetic number, because the mean of its divisors is an integer number (5660117995).

Almost surely, 2^11320235989 is an apocalyptic number.

It is an amenable number.

11320235989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11320235989 is an equidigital number, since it uses as much as digits as its factorization.

11320235989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 11320235989 in words is "eleven billion, three hundred twenty million, two hundred thirty-five thousand, nine hundred eighty-nine".