20334020137 has 2 divisors, whose sum is σ = 20334020138. Its totient is φ = 20334020136.

The previous prime is 20334020129. The next prime is 20334020149. The reversal of 20334020137 is 73102043302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18863374336 + 1470645801 = 137344^2 + 38349^2 .

It is a cyclic number.

It is not a de Polignac number, because 20334020137 - 2³ = 20334020129 is a prime.

It is not a weakly prime, because it can be changed into another prime (20334020177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167010068 + 10167010069.

It is an arithmetic number, because the mean of its divisors is an integer number (10167010069).

Almost surely, 2^20334020137 is an apocalyptic number.

It is an amenable number.

20334020137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334020137 is an equidigital number, since it uses as much as digits as its factorization.

20334020137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 25.

Adding to 20334020137 its reverse (73102043302), we get a palindrome (93436063439).

The spelling of 20334020137 in words is "twenty billion, three hundred thirty-four million, twenty thousand, one hundred thirty-seven".