1121120071 has 2 divisors, whose sum is σ = 1121120072. Its totient is φ = 1121120070.

The previous prime is 1121120051. The next prime is 1121120107. The reversal of 1121120071 is 1700211211.

Together with next prime (1121120107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121120071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121120051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560560035 + 560560036.

It is an arithmetic number, because the mean of its divisors is an integer number (560560036).

Almost surely, 2^1121120071 is an apocalyptic number.

1121120071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121120071 is an equidigital number, since it uses as much as digits as its factorization.

1121120071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 1121120071 is about 33483.1311409193. The cubic root of 1121120071 is about 1038.8448932488.

Adding to 1121120071 its reverse (1700211211), we get a palindrome (2821331282).

The spelling of 1121120071 in words is "one billion, one hundred twenty-one million, one hundred twenty thousand, seventy-one".