131103331211117 has 2 divisors, whose sum is σ = 131103331211118. Its totient is φ = 131103331211116.

The previous prime is 131103331211087. The next prime is 131103331211287. The reversal of 131103331211117 is 711112133301131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101437509281161 + 29665821929956 = 10071619^2 + 5446634^2 .

It is a cyclic number.

It is not a de Polignac number, because 131103331211117 - 2⁸ = 131103331210861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131103331211117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131103331211317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65551665605558 + 65551665605559.

It is an arithmetic number, because the mean of its divisors is an integer number (65551665605559).

Almost surely, 2^{131103331211117} is an apocalyptic number.

It is an amenable number.

131103331211117 is a deficient number, since it is larger than the sum of its proper divisors (1).

131103331211117 is an equidigital number, since it uses as much as digits as its factorization.

131103331211117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 29.

Adding to 131103331211117 its reverse (711112133301131), we get a palindrome (842215464512248).

The spelling of 131103331211117 in words is "one hundred thirty-one trillion, one hundred three billion, three hundred thirty-one million, two hundred eleven thousand, one hundred seventeen".