201001313 has 2 divisors, whose sum is σ = 201001314. Its totient is φ = 201001312.

The previous prime is 201001309. The next prime is 201001321. The reversal of 201001313 is 313100102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110523169 + 90478144 = 10513^2 + 9512^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001313 - 2² = 201001309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201001294 and 201001303.

It is not a weakly prime, because it can be changed into another prime (201000313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500656 + 100500657.

It is an arithmetic number, because the mean of its divisors is an integer number (100500657).

Almost surely, 2^201001313 is an apocalyptic number.

It is an amenable number.

201001313 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001313 is an equidigital number, since it uses as much as digits as its factorization.

201001313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 201001313 is about 14177.4931846219. The cubic root of 201001313 is about 585.7778757593. Note that the first 3 decimals are identical.

Adding to 201001313 its reverse (313100102), we get a palindrome (514101415).

The spelling of 201001313 in words is "two hundred one million, one thousand, three hundred thirteen".