1325220241409 has 2 divisors, whose sum is σ = 1325220241410. Its totient is φ = 1325220241408.

The previous prime is 1325220241381. The next prime is 1325220241417. The reversal of 1325220241409 is 9041420225231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 864277012225 + 460943229184 = 929665^2 + 678928^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325220241409 - 2³² = 1320925274113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1325220211409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662610120704 + 662610120705.

It is an arithmetic number, because the mean of its divisors is an integer number (662610120705).

Almost surely, 2^{1325220241409} is an apocalyptic number.

It is an amenable number.

1325220241409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325220241409 is an equidigital number, since it uses as much as digits as its factorization.

1325220241409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 1325220241409 in words is "one trillion, three hundred twenty-five billion, two hundred twenty million, two hundred forty-one thousand, four hundred nine".