3608102100821 has 2 divisors, whose sum is σ = 3608102100822. Its totient is φ = 3608102100820.

The previous prime is 3608102100817. The next prime is 3608102100907. The reversal of 3608102100821 is 1280012018063.

3608102100821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3369284184721 + 238817916100 = 1835561^2 + 488690^2 .

It is a cyclic number.

It is not a de Polignac number, because 3608102100821 - 2² = 3608102100817 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3608102102821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804051050410 + 1804051050411.

It is an arithmetic number, because the mean of its divisors is an integer number (1804051050411).

Almost surely, 2^{3608102100821} is an apocalyptic number.

It is an amenable number.

3608102100821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3608102100821 is an equidigital number, since it uses as much as digits as its factorization.

3608102100821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

Adding to 3608102100821 its reverse (1280012018063), we get a palindrome (4888114118884).

The spelling of 3608102100821 in words is "three trillion, six hundred eight billion, one hundred two million, one hundred thousand, eight hundred twenty-one".