20131327 has 4 divisors (see below), whose sum is σ = 20141536. Its totient is φ = 20121120.

The previous prime is 20131313. The next prime is 20131339. The reversal of 20131327 is 72313102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20131327 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 (20131387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098 + ... + 6439.

It is an arithmetic number, because the mean of its divisors is an integer number (5035384).

Almost surely, 2^20131327 is an apocalyptic number.

20131327 is a deficient number, since it is larger than the sum of its proper divisors (10209).

20131327 is an equidigital number, since it uses as much as digits as its factorization.

20131327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10208.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20131327 is about 4486.7947356660. The cubic root of 20131327 is about 272.0345931709.

Adding to 20131327 its reverse (72313102), we get a palindrome (92444429).

The spelling of 20131327 in words is "twenty million, one hundred thirty-one thousand, three hundred twenty-seven".