327980493121 has 4 divisors (see below), whose sum is σ = 328234940100. Its totient is φ = 327726046144.

The previous prime is 327980493119. The next prime is 327980493149. The reversal of 327980493121 is 121394089723.

It is a happy number.

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 237071610000 + 90908883121 = 486900^2 + 301511^2 .

It is a cyclic number.

It is not a de Polignac number, because 327980493121 - 2¹ = 327980493119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (327980493151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127221556 + ... + 127224133.

It is an arithmetic number, because the mean of its divisors is an integer number (82058735025).

Almost surely, 2^327980493121 is an apocalyptic number.

It is an amenable number.

327980493121 is a deficient number, since it is larger than the sum of its proper divisors (254446979).

327980493121 is a wasteful number, since it uses less digits than its factorization.

327980493121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254446978.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 327980493121 in words is "three hundred twenty-seven billion, nine hundred eighty million, four hundred ninety-three thousand, one hundred twenty-one".