20242302791 has 2 divisors, whose sum is σ = 20242302792. Its totient is φ = 20242302790.

The previous prime is 20242302767. The next prime is 20242302793. The reversal of 20242302791 is 19720324202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20242302791 - 2⁶ = 20242302727 is a prime.

It is a Sophie Germain prime.

Together with 20242302793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20242302793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121151395 + 10121151396.

It is an arithmetic number, because the mean of its divisors is an integer number (10121151396).

Almost surely, 2^20242302791 is an apocalyptic number.

20242302791 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242302791 is an equidigital number, since it uses as much as digits as its factorization.

20242302791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 20242302791 its reverse (19720324202), we get a palindrome (39962626993).

The spelling of 20242302791 in words is "twenty billion, two hundred forty-two million, three hundred two thousand, seven hundred ninety-one".