11380228789 has 2 divisors, whose sum is σ = 11380228790. Its totient is φ = 11380228788.

The previous prime is 11380228709. The next prime is 11380228793. The reversal of 11380228789 is 98782208311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8977562500 + 2402666289 = 94750^2 + 49017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11380228789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11380228709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5690114394 + 5690114395.

It is an arithmetic number, because the mean of its divisors is an integer number (5690114395).

Almost surely, 2^11380228789 is an apocalyptic number.

It is an amenable number.

11380228789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11380228789 is an equidigital number, since it uses as much as digits as its factorization.

11380228789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 11380228789 in words is "eleven billion, three hundred eighty million, two hundred twenty-eight thousand, seven hundred eighty-nine".