1230203201 has 2 divisors, whose sum is σ = 1230203202. Its totient is φ = 1230203200.

The previous prime is 1230203131. The next prime is 1230203209. The reversal of 1230203201 is 1023020321.

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., 716954176 + 513249025 = 26776^2 + 22655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230203201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230203209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615101600 + 615101601.

It is an arithmetic number, because the mean of its divisors is an integer number (615101601).

Almost surely, 2^1230203201 is an apocalyptic number.

It is an amenable number.

1230203201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230203201 is an equidigital number, since it uses as much as digits as its factorization.

1230203201 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 14.

The square root of 1230203201 is about 35074.2526791377. The cubic root of 1230203201 is about 1071.5002685930.

Adding to 1230203201 its reverse (1023020321), we get a palindrome (2253223522).

It can be divided in two parts, 123020320 and 1, that added together give a palindrome (123020321).

The spelling of 1230203201 in words is "one billion, two hundred thirty million, two hundred three thousand, two hundred one".