131123121133133 has 4 divisors (see below), whose sum is σ = 131149712726208. Its totient is φ = 131096529540060.

The previous prime is 131123121133127. The next prime is 131123121133141. The reversal of 131123121133133 is 331331121321131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131123121133133 - 2²⁰ = 131123120084557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131123121133096 and 131123121133105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123121135133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13295789141 + ... + 13295799002.

It is an arithmetic number, because the mean of its divisors is an integer number (32787428181552).

Almost surely, 2^{131123121133133} is an apocalyptic number.

It is an amenable number.

131123121133133 is a deficient number, since it is larger than the sum of its proper divisors (26591593075).

131123121133133 is an equidigital number, since it uses as much as digits as its factorization.

131123121133133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26591593074.

The product of its digits is 2916, while the sum is 29.

Adding to 131123121133133 its reverse (331331121321131), we get a palindrome (462454242454264).

The spelling of 131123121133133 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, one hundred twenty-one million, one hundred thirty-three thousand, one hundred thirty-three".