20003322191 has 2 divisors, whose sum is σ = 20003322192. Its totient is φ = 20003322190.

The previous prime is 20003322179. The next prime is 20003322197. The reversal of 20003322191 is 19122330002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20003322191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20003322197) 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 as a sum of consecutive naturals, namely, 10001661095 + 10001661096.

It is an arithmetic number, because the mean of its divisors is an integer number (10001661096).

Almost surely, 2^20003322191 is an apocalyptic number.

20003322191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003322191 is an equidigital number, since it uses as much as digits as its factorization.

20003322191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20003322191 its reverse (19122330002), we get a palindrome (39125652193).

The spelling of 20003322191 in words is "twenty billion, three million, three hundred twenty-two thousand, one hundred ninety-one".