131332321061 has 2 divisors, whose sum is σ = 131332321062. Its totient is φ = 131332321060.

The previous prime is 131332321051. The next prime is 131332321129. The reversal of 131332321061 is 160123233131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67974396961 + 63357924100 = 260719^2 + 251710^2 .

It is a cyclic number.

It is not a de Polignac number, because 131332321061 - 2¹⁸ = 131332058917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131332321061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131332321051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666160530 + 65666160531.

It is an arithmetic number, because the mean of its divisors is an integer number (65666160531).

Almost surely, 2^131332321061 is an apocalyptic number.

It is an amenable number.

131332321061 is a deficient number, since it is larger than the sum of its proper divisors (1).

131332321061 is an equidigital number, since it uses as much as digits as its factorization.

131332321061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 131332321061 its reverse (160123233131), we get a palindrome (291455554192).

The spelling of 131332321061 in words is "one hundred thirty-one billion, three hundred thirty-two million, three hundred twenty-one thousand, sixty-one".