131330340121 has 2 divisors, whose sum is σ = 131330340122. Its totient is φ = 131330340120.

The previous prime is 131330340049. The next prime is 131330340221. The reversal of 131330340121 is 121043033131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69888324496 + 61442015625 = 264364^2 + 247875^2 .

It is a cyclic number.

It is not a de Polignac number, because 131330340121 - 2²³ = 131321951513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131330340092 and 131330340101.

It is not a weakly prime, because it can be changed into another prime (131330340221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65665170060 + 65665170061.

It is an arithmetic number, because the mean of its divisors is an integer number (65665170061).

Almost surely, 2^131330340121 is an apocalyptic number.

It is an amenable number.

131330340121 is a deficient number, since it is larger than the sum of its proper divisors (1).

131330340121 is an equidigital number, since it uses as much as digits as its factorization.

131330340121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131330340121 its reverse (121043033131), we get a palindrome (252373373252).

The spelling of 131330340121 in words is "one hundred thirty-one billion, three hundred thirty million, three hundred forty thousand, one hundred twenty-one".