20103140137 has 2 divisors, whose sum is σ = 20103140138. Its totient is φ = 20103140136.

The previous prime is 20103140117. The next prime is 20103140201. The reversal of 20103140137 is 73104130102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13181565721 + 6921574416 = 114811^2 + 83196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20103140137 is a prime.

It is not a weakly prime, because it can be changed into another prime (20103140117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051570068 + 10051570069.

It is an arithmetic number, because the mean of its divisors is an integer number (10051570069).

Almost surely, 2^20103140137 is an apocalyptic number.

It is an amenable number.

20103140137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103140137 is an equidigital number, since it uses as much as digits as its factorization.

20103140137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 20103140137 its reverse (73104130102), we get a palindrome (93207270239).

The spelling of 20103140137 in words is "twenty billion, one hundred three million, one hundred forty thousand, one hundred thirty-seven".