20424234371 has 2 divisors, whose sum is σ = 20424234372. Its totient is φ = 20424234370.

The previous prime is 20424234359. The next prime is 20424234461. The reversal of 20424234371 is 17343242402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20424234371 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20424231371) 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, 10212117185 + 10212117186.

It is an arithmetic number, because the mean of its divisors is an integer number (10212117186).

Almost surely, 2^20424234371 is an apocalyptic number.

20424234371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424234371 is an equidigital number, since it uses as much as digits as its factorization.

20424234371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 32.

Adding to 20424234371 its reverse (17343242402), we get a palindrome (37767476773).

The spelling of 20424234371 in words is "twenty billion, four hundred twenty-four million, two hundred thirty-four thousand, three hundred seventy-one".