7120055771 has 2 divisors, whose sum is σ = 7120055772. Its totient is φ = 7120055770.

The previous prime is 7120055699. The next prime is 7120055773. The reversal of 7120055771 is 1775500217.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7120055771 is a prime.

Together with 7120055773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7120055773) 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, 3560027885 + 3560027886.

It is an arithmetic number, because the mean of its divisors is an integer number (3560027886).

Almost surely, 2^7120055771 is an apocalyptic number.

7120055771 is a deficient number, since it is larger than the sum of its proper divisors (1).

7120055771 is an equidigital number, since it uses as much as digits as its factorization.

7120055771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17150, while the sum is 35.

The square root of 7120055771 is about 84380.4229131379. The cubic root of 7120055771 is about 1923.8053662486.

Adding to 7120055771 its reverse (1775500217), we get a palindrome (8895555988).

The spelling of 7120055771 in words is "seven billion, one hundred twenty million, fifty-five thousand, seven hundred seventy-one".