3313331020981 has 2 divisors, whose sum is σ = 3313331020982. Its totient is φ = 3313331020980.

The previous prime is 3313331020957. The next prime is 3313331020999. The reversal of 3313331020981 is 1890201333133.

3313331020981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2379661038225 + 933669982756 = 1542615^2 + 966266^2 .

It is an emirp because it is prime and its reverse (1890201333133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3313331020981 - 2³³ = 3304741086389 is a prime.

It is a super-2 number, since 2×3313331020981² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3313331020981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3313131020981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656665510490 + 1656665510491.

It is an arithmetic number, because the mean of its divisors is an integer number (1656665510491).

Almost surely, 2^{3313331020981} is an apocalyptic number.

It is an amenable number.

3313331020981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3313331020981 is an equidigital number, since it uses as much as digits as its factorization.

3313331020981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 3313331020981 in words is "three trillion, three hundred thirteen billion, three hundred thirty-one million, twenty thousand, nine hundred eighty-one".