131011220311331 has 2 divisors, whose sum is σ = 131011220311332. Its totient is φ = 131011220311330.

The previous prime is 131011220311277. The next prime is 131011220311459. The reversal of 131011220311331 is 133113022110131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131011220311331 is a prime.

It is a super-2 number, since 2×131011220311331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131011220311297 and 131011220311306.

It is not a weakly prime, because it can be changed into another prime (131011220310331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65505610155665 + 65505610155666.

It is an arithmetic number, because the mean of its divisors is an integer number (65505610155666).

Almost surely, 2^{131011220311331} is an apocalyptic number.

131011220311331 is a deficient number, since it is larger than the sum of its proper divisors (1).

131011220311331 is an equidigital number, since it uses as much as digits as its factorization.

131011220311331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 131011220311331 its reverse (133113022110131), we get a palindrome (264124242421462).

The spelling of 131011220311331 in words is "one hundred thirty-one trillion, eleven billion, two hundred twenty million, three hundred eleven thousand, three hundred thirty-one".