3213120961 has 2 divisors, whose sum is σ = 3213120962. Its totient is φ = 3213120960.

The previous prime is 3213120899. The next prime is 3213121001. The reversal of 3213120961 is 1690213123.

3213120961 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., 1713960000 + 1499160961 = 41400^2 + 38719^2 .

It is an emirp because it is prime and its reverse (1690213123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3213120961 - 2¹¹ = 3213118913 is a prime.

It is not a weakly prime, because it can be changed into another prime (3213120061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606560480 + 1606560481.

It is an arithmetic number, because the mean of its divisors is an integer number (1606560481).

Almost surely, 2^3213120961 is an apocalyptic number.

It is an amenable number.

3213120961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213120961 is an equidigital number, since it uses as much as digits as its factorization.

3213120961 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 28.

The square root of 3213120961 is about 56684.3978621984. The cubic root of 3213120961 is about 1475.6239376597.

The spelling of 3213120961 in words is "three billion, two hundred thirteen million, one hundred twenty thousand, nine hundred sixty-one".