11420428771 has 2 divisors, whose sum is σ = 11420428772. Its totient is φ = 11420428770.

The previous prime is 11420428757. The next prime is 11420428783. The reversal of 11420428771 is 17782402411.

It is a strong prime.

It is an emirp because it is prime and its reverse (17782402411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11420428771 - 2¹⁷ = 11420297699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11420428771.

It is not a weakly prime, because it can be changed into another prime (11420428471) 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, 5710214385 + 5710214386.

It is an arithmetic number, because the mean of its divisors is an integer number (5710214386).

Almost surely, 2^11420428771 is an apocalyptic number.

11420428771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11420428771 is an equidigital number, since it uses as much as digits as its factorization.

11420428771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 37.

The spelling of 11420428771 in words is "eleven billion, four hundred twenty million, four hundred twenty-eight thousand, seven hundred seventy-one".