131320220211121 has 2 divisors, whose sum is σ = 131320220211122. Its totient is φ = 131320220211120.

The previous prime is 131320220211107. The next prime is 131320220211127. The reversal of 131320220211121 is 121112022023131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131315808594721 + 4411616400 = 11459311^2 + 66420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131320220211121 is a prime.

It is a super-3 number, since 3×131320220211121³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131320220211092 and 131320220211101.

It is not a weakly prime, because it can be changed into another prime (131320220211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65660110105560 + 65660110105561.

It is an arithmetic number, because the mean of its divisors is an integer number (65660110105561).

Almost surely, 2^{131320220211121} is an apocalyptic number.

It is an amenable number.

131320220211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

131320220211121 is an equidigital number, since it uses as much as digits as its factorization.

131320220211121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131320220211121 its reverse (121112022023131), we get a palindrome (252432242234252).

The spelling of 131320220211121 in words is "one hundred thirty-one trillion, three hundred twenty billion, two hundred twenty million, two hundred eleven thousand, one hundred twenty-one".