1001303201 has 4 divisors (see below), whose sum is σ = 1004918292. Its totient is φ = 997688112.

The previous prime is 1001303159. The next prime is 1001303221. The reversal of 1001303201 is 1023031001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 296666176 + 704637025 = 17224^2 + 26545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001303201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001303221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1807130 + ... + 1807683.

It is an arithmetic number, because the mean of its divisors is an integer number (251229573).

Almost surely, 2^1001303201 is an apocalyptic number.

It is an amenable number.

1001303201 is a deficient number, since it is larger than the sum of its proper divisors (3615091).

1001303201 is an equidigital number, since it uses as much as digits as its factorization.

1001303201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3615090.

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

The square root of 1001303201 is about 31643.3753098496. The cubic root of 1001303201 is about 1000.4342117662.

Adding to 1001303201 its reverse (1023031001), we get a palindrome (2024334202).

The spelling of 1001303201 in words is "one billion, one million, three hundred three thousand, two hundred one".