3001203661 has 2 divisors, whose sum is σ = 3001203662. Its totient is φ = 3001203660.

The previous prime is 3001203637. The next prime is 3001203677. The reversal of 3001203661 is 1663021003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2774128900 + 227074761 = 52670^2 + 15069^2 .

It is a cyclic number.

It is not a de Polignac number, because 3001203661 - 2¹⁷ = 3001072589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3001201661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500601830 + 1500601831.

It is an arithmetic number, because the mean of its divisors is an integer number (1500601831).

Almost surely, 2^3001203661 is an apocalyptic number.

It is an amenable number.

3001203661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3001203661 is an equidigital number, since it uses as much as digits as its factorization.

3001203661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3001203661 is about 54783.2425199531. The cubic root of 3001203661 is about 1442.4424311343.

Adding to 3001203661 its reverse (1663021003), we get a palindrome (4664224664).

The spelling of 3001203661 in words is "three billion, one million, two hundred three thousand, six hundred sixty-one".