20020413191 has 2 divisors, whose sum is σ = 20020413192. Its totient is φ = 20020413190.

The previous prime is 20020413173. The next prime is 20020413253. The reversal of 20020413191 is 19131402002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020413191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020413121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010206595 + 10010206596.

It is an arithmetic number, because the mean of its divisors is an integer number (10010206596).

Almost surely, 2^20020413191 is an apocalyptic number.

20020413191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020413191 is an equidigital number, since it uses as much as digits as its factorization.

20020413191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 20020413191 its reverse (19131402002), we get a palindrome (39151815193).

The spelling of 20020413191 in words is "twenty billion, twenty million, four hundred thirteen thousand, one hundred ninety-one".