13020327937 has 4 divisors (see below), whose sum is σ = 13074354436. Its totient is φ = 12966301440.

The previous prime is 13020327919. The next prime is 13020327941. The reversal of 13020327937 is 73972302031.

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 10256828176 + 2763499761 = 101276^2 + 52569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13020327937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13020327896 and 13020327905.

It is not an unprimeable number, because it can be changed into a prime (13020327907) 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, 27012888 + ... + 27013369.

It is an arithmetic number, because the mean of its divisors is an integer number (3268588609).

Almost surely, 2^13020327937 is an apocalyptic number.

It is an amenable number.

13020327937 is a deficient number, since it is larger than the sum of its proper divisors (54026499).

13020327937 is an equidigital number, since it uses as much as digits as its factorization.

13020327937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54026498.

The product of its (nonzero) digits is 47628, while the sum is 37.

Adding to 13020327937 its reverse (73972302031), we get a palindrome (86992629968).

The spelling of 13020327937 in words is "thirteen billion, twenty million, three hundred twenty-seven thousand, nine hundred thirty-seven".