20201112331 has 2 divisors, whose sum is σ = 20201112332. Its totient is φ = 20201112330.

The previous prime is 20201112329. The next prime is 20201112343. The reversal of 20201112331 is 13321110202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20201112331 - 2¹ = 20201112329 is a prime.

It is a super-2 number, since 2×20201112331² (a number of 21 digits) contains 22 as substring.

Together with 20201112329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20201112361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100556165 + 10100556166.

It is an arithmetic number, because the mean of its divisors is an integer number (10100556166).

Almost surely, 2^20201112331 is an apocalyptic number.

20201112331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201112331 is an equidigital number, since it uses as much as digits as its factorization.

20201112331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20201112331 its reverse (13321110202), we get a palindrome (33522222533).

The spelling of 20201112331 in words is "twenty billion, two hundred one million, one hundred twelve thousand, three hundred thirty-one".