1185283321 has 2 divisors, whose sum is σ = 1185283322. Its totient is φ = 1185283320.

The previous prime is 1185283303. The next prime is 1185283343. The reversal of 1185283321 is 1233825811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184116921 + 1166400 = 34411^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1185283321 - 2²⁵ = 1151728889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1185283721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592641660 + 592641661.

It is an arithmetic number, because the mean of its divisors is an integer number (592641661).

Almost surely, 2^1185283321 is an apocalyptic number.

It is an amenable number.

1185283321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1185283321 is an equidigital number, since it uses as much as digits as its factorization.

1185283321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 34.

The square root of 1185283321 is about 34427.9438973634. The cubic root of 1185283321 is about 1058.2965760906.

The spelling of 1185283321 in words is "one billion, one hundred eighty-five million, two hundred eighty-three thousand, three hundred twenty-one".