131123321331233 has 12 divisors (see below), whose sum is σ = 166397684213232. Its totient is φ = 102174016621320.

The previous prime is 131123321331157. The next prime is 131123321331281. The reversal of 131123321331233 is 332133123321131.

It is a de Polignac number, because none of the positive numbers 2^k-131123321331233 is a prime.

It is a super-3 number, since 3×131123321331233³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131123321331233.

It is not an unprimeable number, because it can be changed into a prime (131123321331133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121635733535 + ... + 121635734612.

It is an arithmetic number, because the mean of its divisors is an integer number (13866473684436).

Almost surely, 2^{131123321331233} is an apocalyptic number.

It is an amenable number.

131123321331233 is a deficient number, since it is larger than the sum of its proper divisors (35274362881999).

131123321331233 is a wasteful number, since it uses less digits than its factorization.

131123321331233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243271468172 (or 243271468165 counting only the distinct ones).

The product of its digits is 17496, while the sum is 32.

Adding to 131123321331233 its reverse (332133123321131), we get a palindrome (463256444652364).

The spelling of 131123321331233 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred thirty-three".