20131302101 has 2 divisors, whose sum is σ = 20131302102. Its totient is φ = 20131302100.

The previous prime is 20131302091. The next prime is 20131302179. The reversal of 20131302101 is 10120313102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17346207025 + 2785095076 = 131705^2 + 52774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20131302101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20131302181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065651050 + 10065651051.

It is an arithmetic number, because the mean of its divisors is an integer number (10065651051).

Almost surely, 2^20131302101 is an apocalyptic number.

It is an amenable number.

20131302101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20131302101 is an equidigital number, since it uses as much as digits as its factorization.

20131302101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20131302101 its reverse (10120313102), we get a palindrome (30251615203).

The spelling of 20131302101 in words is "twenty billion, one hundred thirty-one million, three hundred two thousand, one hundred one".