131302333333331 has 2 divisors, whose sum is σ = 131302333333332. Its totient is φ = 131302333333330.

The previous prime is 131302333333309. The next prime is 131302333333357. The reversal of 131302333333331 is 133333333203131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131302333333331 is a prime.

It is a super-2 number, since 2×131302333333331² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 131302333333291 and 131302333333300.

It is not a weakly prime, because it can be changed into another prime (131302333833331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651166666665 + 65651166666666.

It is an arithmetic number, because the mean of its divisors is an integer number (65651166666666).

Almost surely, 2^{131302333333331} is an apocalyptic number.

131302333333331 is a deficient number, since it is larger than the sum of its proper divisors (1).

131302333333331 is an equidigital number, since it uses as much as digits as its factorization.

131302333333331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118098, while the sum is 35.

Adding to 131302333333331 its reverse (133333333203131), we get a palindrome (264635666536462).

The spelling of 131302333333331 in words is "one hundred thirty-one trillion, three hundred two billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred thirty-one".