1243334201 has 2 divisors, whose sum is σ = 1243334202. Its totient is φ = 1243334200.

The previous prime is 1243334189. The next prime is 1243334221. The reversal of 1243334201 is 1024333421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640140601 + 603193600 = 25301^2 + 24560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243334201 - 2¹⁸ = 1243072057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1243334221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621667100 + 621667101.

It is an arithmetic number, because the mean of its divisors is an integer number (621667101).

Almost surely, 2^1243334201 is an apocalyptic number.

It is an amenable number.

1243334201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243334201 is an equidigital number, since it uses as much as digits as its factorization.

1243334201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1243334201 is about 35260.9444144651. The cubic root of 1243334201 is about 1075.2991274301.

Adding to 1243334201 its reverse (1024333421), we get a palindrome (2267667622).

It can be divided in two parts, 124333420 and 1, that added together give a palindrome (124333421).

The spelling of 1243334201 in words is "one billion, two hundred forty-three million, three hundred thirty-four thousand, two hundred one".