1123016201 has 2 divisors, whose sum is σ = 1123016202. Its totient is φ = 1123016200.

The previous prime is 1123016189. The next prime is 1123016203. The reversal of 1123016201 is 1026103211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057810576 + 65205625 = 32524^2 + 8075^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123016201 - 2¹⁰ = 1123015177 is a prime.

It is a super-2 number, since 2×1123016201² = 2522330775416944802, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1123016203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123016201.

It is not a weakly prime, because it can be changed into another prime (1123016203) 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, 561508100 + 561508101.

It is an arithmetic number, because the mean of its divisors is an integer number (561508101).

Almost surely, 2^1123016201 is an apocalyptic number.

It is an amenable number.

1123016201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123016201 is an equidigital number, since it uses as much as digits as its factorization.

1123016201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1123016201 is about 33511.4338845714. The cubic root of 1123016201 is about 1039.4302232158.

Adding to 1123016201 its reverse (1026103211), we get a palindrome (2149119412).

The spelling of 1123016201 in words is "one billion, one hundred twenty-three million, sixteen thousand, two hundred one".