11430021289 has 2 divisors, whose sum is σ = 11430021290. Its totient is φ = 11430021288.

The previous prime is 11430021283. The next prime is 11430021367. The reversal of 11430021289 is 98212003411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11174181264 + 255840025 = 105708^2 + 15995^2 .

It is an emirp because it is prime and its reverse (98212003411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11430021289 - 2⁵ = 11430021257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11430021289.

It is not a weakly prime, because it can be changed into another prime (11430021283) 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, 5715010644 + 5715010645.

It is an arithmetic number, because the mean of its divisors is an integer number (5715010645).

Almost surely, 2^11430021289 is an apocalyptic number.

It is an amenable number.

11430021289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11430021289 is an equidigital number, since it uses as much as digits as its factorization.

11430021289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 11430021289 in words is "eleven billion, four hundred thirty million, twenty-one thousand, two hundred eighty-nine".