20102004137 has 2 divisors, whose sum is σ = 20102004138. Its totient is φ = 20102004136.

The previous prime is 20102004113. The next prime is 20102004179. The reversal of 20102004137 is 73140020102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15273005056 + 4828999081 = 123584^2 + 69491^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102004137 - 2⁶ = 20102004073 is a prime.

It is a super-2 number, since 2×20102004137² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20102304137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051002068 + 10051002069.

It is an arithmetic number, because the mean of its divisors is an integer number (10051002069).

Almost surely, 2^20102004137 is an apocalyptic number.

It is an amenable number.

20102004137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102004137 is an equidigital number, since it uses as much as digits as its factorization.

20102004137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 20102004137 its reverse (73140020102), we get a palindrome (93242024239).

The spelling of 20102004137 in words is "twenty billion, one hundred two million, four thousand, one hundred thirty-seven".