1118363321 has 2 divisors, whose sum is σ = 1118363322. Its totient is φ = 1118363320.

The previous prime is 1118363299. The next prime is 1118363327. The reversal of 1118363321 is 1233638111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837465721 + 280897600 = 28939^2 + 16760^2 .

It is an emirp because it is prime and its reverse (1233638111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118363321 is a prime.

It is a super-3 number, since 3×1118363321³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1118363327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559181660 + 559181661.

It is an arithmetic number, because the mean of its divisors is an integer number (559181661).

Almost surely, 2^1118363321 is an apocalyptic number.

It is an amenable number.

1118363321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118363321 is an equidigital number, since it uses as much as digits as its factorization.

1118363321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 1118363321 is about 33441.9395520057. The cubic root of 1118363321 is about 1037.9927138780.

The spelling of 1118363321 in words is "one billion, one hundred eighteen million, three hundred sixty-three thousand, three hundred twenty-one".