3481013318821 has 2 divisors, whose sum is σ = 3481013318822. Its totient is φ = 3481013318820.

The previous prime is 3481013318803. The next prime is 3481013318863. The reversal of 3481013318821 is 1288133101843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3480784250596 + 229068225 = 1865686^2 + 15135^2 .

It is a cyclic number.

It is not a de Polignac number, because 3481013318821 - 2²¹ = 3481011221669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3481013318801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1740506659410 + 1740506659411.

It is an arithmetic number, because the mean of its divisors is an integer number (1740506659411).

Almost surely, 2^{3481013318821} is an apocalyptic number.

It is an amenable number.

3481013318821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3481013318821 is an equidigital number, since it uses as much as digits as its factorization.

3481013318821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 3481013318821 in words is "three trillion, four hundred eighty-one billion, thirteen million, three hundred eighteen thousand, eight hundred twenty-one".