1141011281 has 2 divisors, whose sum is σ = 1141011282. Its totient is φ = 1141011280.

The previous prime is 1141011259. The next prime is 1141011317. The reversal of 1141011281 is 1821101411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 671639056 + 469372225 = 25916^2 + 21665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141011281 is a prime.

It is a super-2 number, since 2×1141011281² = 2603813486738521922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1141011211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570505640 + 570505641.

It is an arithmetic number, because the mean of its divisors is an integer number (570505641).

Almost surely, 2^1141011281 is an apocalyptic number.

It is an amenable number.

1141011281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141011281 is an equidigital number, since it uses as much as digits as its factorization.

1141011281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 1141011281 is about 33778.8584916661. The cubic root of 1141011281 is about 1044.9527327659.

Adding to 1141011281 its reverse (1821101411), we get a palindrome (2962112692).

The spelling of 1141011281 in words is "one billion, one hundred forty-one million, eleven thousand, two hundred eighty-one".