2641381321 has 2 divisors, whose sum is σ = 2641381322. Its totient is φ = 2641381320.

The previous prime is 2641381297. The next prime is 2641381357. The reversal of 2641381321 is 1231831462.

2641381321 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., 2483527225 + 157854096 = 49835^2 + 12564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2641381321 - 2¹⁵ = 2641348553 is a prime.

It is not a weakly prime, because it can be changed into another prime (2641381921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320690660 + 1320690661.

It is an arithmetic number, because the mean of its divisors is an integer number (1320690661).

Almost surely, 2^2641381321 is an apocalyptic number.

It is an amenable number.

2641381321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641381321 is an equidigital number, since it uses as much as digits as its factorization.

2641381321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 2641381321 is about 51394.3705185694. The cubic root of 2641381321 is about 1382.3256522746.

The spelling of 2641381321 in words is "two billion, six hundred forty-one million, three hundred eighty-one thousand, three hundred twenty-one".