1123234201 has 4 divisors (see below), whose sum is σ = 1135854900. Its totient is φ = 1110613504.

The previous prime is 1123234193. The next prime is 1123234213. The reversal of 1123234201 is 1024323211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 388878400 + 734355801 = 19720^2 + 27099^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123234201 - 2³ = 1123234193 is a prime.

It is a super-2 number, since 2×1123234201² = 2523310140592216802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123234241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6310216 + ... + 6310393.

It is an arithmetic number, because the mean of its divisors is an integer number (283963725).

Almost surely, 2^1123234201 is an apocalyptic number.

It is an amenable number.

1123234201 is a deficient number, since it is larger than the sum of its proper divisors (12620699).

1123234201 is an equidigital number, since it uses as much as digits as its factorization.

1123234201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620698.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1123234201 is about 33514.6863479281. The cubic root of 1123234201 is about 1039.4974769586.

Adding to 1123234201 its reverse (1024323211), we get a palindrome (2147557412).

The spelling of 1123234201 in words is "one billion, one hundred twenty-three million, two hundred thirty-four thousand, two hundred one".