131020204001213 has 2 divisors, whose sum is σ = 131020204001214. Its totient is φ = 131020204001212.

The previous prime is 131020204001173. The next prime is 131020204001279. The reversal of 131020204001213 is 312100402020131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117159906865849 + 13860297135364 = 10824043^2 + 3722942^2 .

It is an emirp because it is prime and its reverse (312100402020131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131020204001213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131020204001513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65510102000606 + 65510102000607.

It is an arithmetic number, because the mean of its divisors is an integer number (65510102000607).

Almost surely, 2^{131020204001213} is an apocalyptic number.

It is an amenable number.

131020204001213 is a deficient number, since it is larger than the sum of its proper divisors (1).

131020204001213 is an equidigital number, since it uses as much as digits as its factorization.

131020204001213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131020204001213 its reverse (312100402020131), we get a palindrome (443120606021344).

The spelling of 131020204001213 in words is "one hundred thirty-one trillion, twenty billion, two hundred four million, one thousand, two hundred thirteen".