131122533137 has 2 divisors, whose sum is σ = 131122533138. Its totient is φ = 131122533136.

The previous prime is 131122533133. The next prime is 131122533161. The reversal of 131122533137 is 731335221131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73116700801 + 58005832336 = 270401^2 + 240844^2 .

It is a cyclic number.

It is not a de Polignac number, because 131122533137 - 2² = 131122533133 is a prime.

It is not a weakly prime, because it can be changed into another prime (131122533133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65561266568 + 65561266569.

It is an arithmetic number, because the mean of its divisors is an integer number (65561266569).

Almost surely, 2^131122533137 is an apocalyptic number.

It is an amenable number.

131122533137 is a deficient number, since it is larger than the sum of its proper divisors (1).

131122533137 is an equidigital number, since it uses as much as digits as its factorization.

131122533137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 32.

Adding to 131122533137 its reverse (731335221131), we get a palindrome (862457754268).

The spelling of 131122533137 in words is "one hundred thirty-one billion, one hundred twenty-two million, five hundred thirty-three thousand, one hundred thirty-seven".