1121266271 has 2 divisors, whose sum is σ = 1121266272. Its totient is φ = 1121266270.

The previous prime is 1121266253. The next prime is 1121266283. The reversal of 1121266271 is 1726621211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121266271 - 2¹⁰ = 1121265247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121266771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560633135 + 560633136.

It is an arithmetic number, because the mean of its divisors is an integer number (560633136).

Almost surely, 2^1121266271 is an apocalyptic number.

1121266271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121266271 is an equidigital number, since it uses as much as digits as its factorization.

1121266271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 1121266271 is about 33485.3142586418. The cubic root of 1121266271 is about 1038.8900482463.

Adding to 1121266271 its reverse (1726621211), we get a palindrome (2847887482).

The spelling of 1121266271 in words is "one billion, one hundred twenty-one million, two hundred sixty-six thousand, two hundred seventy-one".