1325943038009 has 2 divisors, whose sum is σ = 1325943038010. Its totient is φ = 1325943038008.

The previous prime is 1325943037961. The next prime is 1325943038027. The reversal of 1325943038009 is 9008303495231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1170507610000 + 155435428009 = 1081900^2 + 394253^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325943038009 - 2⁸ = 1325943037753 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1325943038039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662971519004 + 662971519005.

It is an arithmetic number, because the mean of its divisors is an integer number (662971519005).

Almost surely, 2^{1325943038009} is an apocalyptic number.

It is an amenable number.

1325943038009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325943038009 is an equidigital number, since it uses as much as digits as its factorization.

1325943038009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 1325943038009 in words is "one trillion, three hundred twenty-five billion, nine hundred forty-three million, thirty-eight thousand, nine".