18203201201 has 2 divisors, whose sum is σ = 18203201202. Its totient is φ = 18203201200.

The previous prime is 18203201183. The next prime is 18203201221. The reversal of 18203201201 is 10210230281.

It is an a-pointer prime, because the next prime (18203201221) can be obtained adding 18203201201 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16713318400 + 1489882801 = 129280^2 + 38599^2 .

It is an emirp because it is prime and its reverse (10210230281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18203201201 - 2¹⁴ = 18203184817 is a prime.

It is not a weakly prime, because it can be changed into another prime (18203201221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9101600600 + 9101600601.

It is an arithmetic number, because the mean of its divisors is an integer number (9101600601).

Almost surely, 2^18203201201 is an apocalyptic number.

It is an amenable number.

18203201201 is a deficient number, since it is larger than the sum of its proper divisors (1).

18203201201 is an equidigital number, since it uses as much as digits as its factorization.

18203201201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 18203201201 its reverse (10210230281), we get a palindrome (28413431482).

The spelling of 18203201201 in words is "eighteen billion, two hundred three million, two hundred one thousand, two hundred one".