1325680236109 has 4 divisors (see below), whose sum is σ = 1337842440220. Its totient is φ = 1313518032000.

The previous prime is 1325680236077. The next prime is 1325680236113. The reversal of 1325680236109 is 9016320865231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1118242800900 + 207437435209 = 1057470^2 + 455453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325680236109 - 2⁵ = 1325680236077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325680236149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6081101892 + ... + 6081102109.

It is an arithmetic number, because the mean of its divisors is an integer number (334460610055).

Almost surely, 2^{1325680236109} is an apocalyptic number.

It is an amenable number.

1325680236109 is a deficient number, since it is larger than the sum of its proper divisors (12162204111).

1325680236109 is a wasteful number, since it uses less digits than its factorization.

1325680236109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12162204110.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 1325680236109 in words is "one trillion, three hundred twenty-five billion, six hundred eighty million, two hundred thirty-six thousand, one hundred nine".