1129120271 has 2 divisors, whose sum is σ = 1129120272. Its totient is φ = 1129120270.

The previous prime is 1129120243. The next prime is 1129120283. The reversal of 1129120271 is 1720219211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1129120271 - 2¹⁸ = 1128858127 is a prime.

It is a super-2 number, since 2×1129120271² = 2549825172766226882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1129120271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1129120241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564560135 + 564560136.

It is an arithmetic number, because the mean of its divisors is an integer number (564560136).

Almost surely, 2^1129120271 is an apocalyptic number.

1129120271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129120271 is an equidigital number, since it uses as much as digits as its factorization.

1129120271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1129120271 is about 33602.3849004799. The cubic root of 1129120271 is about 1041.3100696346.

Adding to 1129120271 its reverse (1720219211), we get a palindrome (2849339482).

The spelling of 1129120271 in words is "one billion, one hundred twenty-nine million, one hundred twenty thousand, two hundred seventy-one".