133121310131 has 2 divisors, whose sum is σ = 133121310132. Its totient is φ = 133121310130.

The previous prime is 133121310109. The next prime is 133121310169. The reversal of 133121310131 is 131013121331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133121310131 - 2³⁰ = 132047568307 is a prime.

It is a super-2 number, since 2×133121310131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133121310431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66560655065 + 66560655066.

It is an arithmetic number, because the mean of its divisors is an integer number (66560655066).

Almost surely, 2^133121310131 is an apocalyptic number.

133121310131 is a deficient number, since it is larger than the sum of its proper divisors (1).

133121310131 is an equidigital number, since it uses as much as digits as its factorization.

133121310131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 133121310131 its reverse (131013121331), we get a palindrome (264134431462).

The spelling of 133121310131 in words is "one hundred thirty-three billion, one hundred twenty-one million, three hundred ten thousand, one hundred thirty-one".