33021313319893 has 2 divisors, whose sum is σ = 33021313319894. Its totient is φ = 33021313319892.

The previous prime is 33021313319837. The next prime is 33021313320109. The reversal of 33021313319893 is 39891331312033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17259762233169 + 15761551086724 = 4154487^2 + 3970082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33021313319893 is a prime.

It is a super-2 number, since 2×33021313319893² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33021313319693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16510656659946 + 16510656659947.

It is an arithmetic number, because the mean of its divisors is an integer number (16510656659947).

Almost surely, 2^{33021313319893} is an apocalyptic number.

It is an amenable number.

33021313319893 is a deficient number, since it is larger than the sum of its proper divisors (1).

33021313319893 is an equidigital number, since it uses as much as digits as its factorization.

33021313319893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 944784, while the sum is 49.

The spelling of 33021313319893 in words is "thirty-three trillion, twenty-one billion, three hundred thirteen million, three hundred nineteen thousand, eight hundred ninety-three".