1200203201 has 2 divisors, whose sum is σ = 1200203202. Its totient is φ = 1200203200.

The previous prime is 1200203189. The next prime is 1200203239. The reversal of 1200203201 is 1023020021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 771506176 + 428697025 = 27776^2 + 20705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200203201 - 2¹⁰ = 1200202177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200203101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600101600 + 600101601.

It is an arithmetic number, because the mean of its divisors is an integer number (600101601).

Almost surely, 2^1200203201 is an apocalyptic number.

It is an amenable number.

1200203201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200203201 is an equidigital number, since it uses as much as digits as its factorization.

1200203201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1200203201 is about 34643.9489810270. The cubic root of 1200203201 is about 1062.7185472650.

Adding to 1200203201 its reverse (1023020021), we get a palindrome (2223223222).

The spelling of 1200203201 in words is "one billion, two hundred million, two hundred three thousand, two hundred one".