1130719981 has 2 divisors, whose sum is σ = 1130719982. Its totient is φ = 1130719980.

The previous prime is 1130719957. The next prime is 1130719987. The reversal of 1130719981 is 1899170311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1092897481 + 37822500 = 33059^2 + 6150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130719981 - 2¹¹ = 1130717933 is a prime.

It is a super-2 number, since 2×1130719981² = 2557055350865280722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130719987) 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, 565359990 + 565359991.

It is an arithmetic number, because the mean of its divisors is an integer number (565359991).

Almost surely, 2^1130719981 is an apocalyptic number.

It is an amenable number.

1130719981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130719981 is an equidigital number, since it uses as much as digits as its factorization.

1130719981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 40.

The square root of 1130719981 is about 33626.1799941653. The cubic root of 1130719981 is about 1041.8016051268.

The spelling of 1130719981 in words is "one billion, one hundred thirty million, seven hundred nineteen thousand, nine hundred eighty-one".