1123304201 has 12 divisors (see below), whose sum is σ = 1157820300. Its totient is φ = 1089789120.

The previous prime is 1123304191. The next prime is 1123304219. The reversal of 1123304201 is 1024033211.

It can be written as a sum of positive squares in 6 ways, for example, as 74839801 + 1048464400 = 8651^2 + 32380^2 .

It is not a de Polignac number, because 1123304201 - 2⁶ = 1123304137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123304201.

It is not an unprimeable number, because it can be changed into a prime (1123304261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575375 + ... + 577323.

It is an arithmetic number, because the mean of its divisors is an integer number (96485025).

Almost surely, 2^1123304201 is an apocalyptic number.

It is an amenable number.

1123304201 is a deficient number, since it is larger than the sum of its proper divisors (34516099).

1123304201 is an equidigital number, since it uses as much as digits as its factorization.

1123304201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1123304201 is about 33515.7306499500. The cubic root of 1123304201 is about 1039.5190703513.

Adding to 1123304201 its reverse (1024033211), we get a palindrome (2147337412).

The spelling of 1123304201 in words is "one billion, one hundred twenty-three million, three hundred four thousand, two hundred one".