3660313021 has 2 divisors, whose sum is σ = 3660313022. Its totient is φ = 3660313020.

The previous prime is 3660313001. The next prime is 3660313079. The reversal of 3660313021 is 1203130663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3649488921 + 10824100 = 60411^2 + 3290^2 .

It is a cyclic number.

It is not a de Polignac number, because 3660313021 - 2¹⁷ = 3660181949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3660313001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830156510 + 1830156511.

It is an arithmetic number, because the mean of its divisors is an integer number (1830156511).

Almost surely, 2^3660313021 is an apocalyptic number.

It is an amenable number.

3660313021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3660313021 is an equidigital number, since it uses as much as digits as its factorization.

3660313021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 3660313021 is about 60500.5208324689. The cubic root of 3660313021 is about 1541.1304766542.

Adding to 3660313021 its reverse (1203130663), we get a palindrome (4863443684).

The spelling of 3660313021 in words is "three billion, six hundred sixty million, three hundred thirteen thousand, twenty-one".