201330001 has 2 divisors, whose sum is σ = 201330002. Its totient is φ = 201330000.

The previous prime is 201329993. The next prime is 201330011. The reversal of 201330001 is 100033102.

It is an a-pointer prime, because the next prime (201330011) can be obtained adding 201330001 to its sum of digits (10).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153388225 + 47941776 = 12385^2 + 6924^2 .

It is a cyclic number.

It is not a de Polignac number, because 201330001 - 2³ = 201329993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201330001.

It is not a weakly prime, because it can be changed into another prime (201330011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100665000 + 100665001.

It is an arithmetic number, because the mean of its divisors is an integer number (100665001).

Almost surely, 2^201330001 is an apocalyptic number.

It is an amenable number.

201330001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201330001 is an equidigital number, since it uses as much as digits as its factorization.

201330001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 201330001 is about 14189.0803437009. The cubic root of 201330001 is about 586.0970002155.

Adding to 201330001 its reverse (100033102), we get a palindrome (301363103).

The spelling of 201330001 in words is "two hundred one million, three hundred thirty thousand, one".