1118383841 has 2 divisors, whose sum is σ = 1118383842. Its totient is φ = 1118383840.

The previous prime is 1118383823. The next prime is 1118383843. The reversal of 1118383841 is 1483838111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106959441 + 11424400 = 33271^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118383841 - 2¹⁰ = 1118382817 is a prime.

It is a Sophie Germain prime.

Together with 1118383843, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1118383795 and 1118383804.

It is not a weakly prime, because it can be changed into another prime (1118383843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559191920 + 559191921.

It is an arithmetic number, because the mean of its divisors is an integer number (559191921).

Almost surely, 2^1118383841 is an apocalyptic number.

It is an amenable number.

1118383841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118383841 is an equidigital number, since it uses as much as digits as its factorization.

1118383841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 38.

The square root of 1118383841 is about 33442.2463509855. The cubic root of 1118383841 is about 1037.9990622861. Note that the first 3 decimals are identical.

The spelling of 1118383841 in words is "one billion, one hundred eighteen million, three hundred eighty-three thousand, eight hundred forty-one".