20130135101 has 2 divisors, whose sum is σ = 20130135102. Its totient is φ = 20130135100.

The previous prime is 20130135083. The next prime is 20130135209. The reversal of 20130135101 is 10153103102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10115129476 + 10015005625 = 100574^2 + 100075^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130135101 - 2¹⁴ = 20130118717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20130135101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130135901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065067550 + 10065067551.

It is an arithmetic number, because the mean of its divisors is an integer number (10065067551).

Almost surely, 2^20130135101 is an apocalyptic number.

It is an amenable number.

20130135101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130135101 is an equidigital number, since it uses as much as digits as its factorization.

20130135101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 20130135101 its reverse (10153103102), we get a palindrome (30283238203).

The spelling of 20130135101 in words is "twenty billion, one hundred thirty million, one hundred thirty-five thousand, one hundred one".