131230202113 has 2 divisors, whose sum is σ = 131230202114. Its totient is φ = 131230202112.

The previous prime is 131230202099. The next prime is 131230202171. The reversal of 131230202113 is 311202032131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127379751409 + 3850450704 = 356903^2 + 62052^2 .

It is a cyclic number.

It is not a de Polignac number, because 131230202113 - 2⁹ = 131230201601 is a prime.

It is not a weakly prime, because it can be changed into another prime (131260202113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65615101056 + 65615101057.

It is an arithmetic number, because the mean of its divisors is an integer number (65615101057).

Almost surely, 2^131230202113 is an apocalyptic number.

It is an amenable number.

131230202113 is a deficient number, since it is larger than the sum of its proper divisors (1).

131230202113 is an equidigital number, since it uses as much as digits as its factorization.

131230202113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131230202113 its reverse (311202032131), we get a palindrome (442432234244).

The spelling of 131230202113 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred two thousand, one hundred thirteen".