131303103321157 has 2 divisors, whose sum is σ = 131303103321158. Its totient is φ = 131303103321156.

The previous prime is 131303103321149. The next prime is 131303103321223. The reversal of 131303103321157 is 751123301303131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74569684119876 + 56733419201281 = 8635374^2 + 7532159^2 .

It is an emirp because it is prime and its reverse (751123301303131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131303103321157 - 2³ = 131303103321149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131303103321107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651551660578 + 65651551660579.

It is an arithmetic number, because the mean of its divisors is an integer number (65651551660579).

Almost surely, 2^{131303103321157} is an apocalyptic number.

It is an amenable number.

131303103321157 is a deficient number, since it is larger than the sum of its proper divisors (1).

131303103321157 is an equidigital number, since it uses as much as digits as its factorization.

131303103321157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 34.

Adding to 131303103321157 its reverse (751123301303131), we get a palindrome (882426404624288).

The spelling of 131303103321157 in words is "one hundred thirty-one trillion, three hundred three billion, one hundred three million, three hundred twenty-one thousand, one hundred fifty-seven".