20302202130191 has 2 divisors, whose sum is σ = 20302202130192. Its totient is φ = 20302202130190.

The previous prime is 20302202130121. The next prime is 20302202130263. The reversal of 20302202130191 is 19103120220302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20302202130191 is a prime.

It is a super-2 number, since 2×20302202130191² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20302202130191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302202130101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151101065095 + 10151101065096.

It is an arithmetic number, because the mean of its divisors is an integer number (10151101065096).

Almost surely, 2^{20302202130191} is an apocalyptic number.

20302202130191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302202130191 is an equidigital number, since it uses as much as digits as its factorization.

20302202130191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 20302202130191 its reverse (19103120220302), we get a palindrome (39405322350493).

The spelling of 20302202130191 in words is "twenty trillion, three hundred two billion, two hundred two million, one hundred thirty thousand, one hundred ninety-one".