1325281238513 has 2 divisors, whose sum is σ = 1325281238514. Its totient is φ = 1325281238512.

The previous prime is 1325281238497. The next prime is 1325281238539. The reversal of 1325281238513 is 3158321825231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1130462285824 + 194818952689 = 1063232^2 + 441383^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325281238513 - 2⁴ = 1325281238497 is a prime.

It is a super-2 number, since 2×1325281238513² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1325281238543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662640619256 + 662640619257.

It is an arithmetic number, because the mean of its divisors is an integer number (662640619257).

Almost surely, 2^{1325281238513} is an apocalyptic number.

It is an amenable number.

1325281238513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325281238513 is an equidigital number, since it uses as much as digits as its factorization.

1325281238513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 44.

The spelling of 1325281238513 in words is "one trillion, three hundred twenty-five billion, two hundred eighty-one million, two hundred thirty-eight thousand, five hundred thirteen".