11031042389 has 2 divisors, whose sum is σ = 11031042390. Its totient is φ = 11031042388.

The previous prime is 11031042377. The next prime is 11031042403. The reversal of 11031042389 is 98324013011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6493942225 + 4537100164 = 80585^2 + 67358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11031042389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11031042689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515521194 + 5515521195.

It is an arithmetic number, because the mean of its divisors is an integer number (5515521195).

Almost surely, 2^11031042389 is an apocalyptic number.

It is an amenable number.

11031042389 is a deficient number, since it is larger than the sum of its proper divisors (1).

11031042389 is an equidigital number, since it uses as much as digits as its factorization.

11031042389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 11031042389 in words is "eleven billion, thirty-one million, forty-two thousand, three hundred eighty-nine".