131343231223000 has 128 divisors (see below), whose sum is σ = 308565011589120. Its totient is φ = 52328498313600.

The previous prime is 131343231222989. The next prime is 131343231223021. The reversal of 131343231223000 is 322132343131.

It is a self number, because there is not a number n which added to its sum of digits gives 131343231223000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1642921029 + ... + 1643000971.

It is an arithmetic number, because the mean of its divisors is an integer number (2410664153040).

Almost surely, 2^{131343231223000} is an apocalyptic number.

131343231223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131343231223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154282505794560).

131343231223000 is an abundant number, since it is smaller than the sum of its proper divisors (177221780366120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131343231223000 is a wasteful number, since it uses less digits than its factorization.

131343231223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86474 (or 86460 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 131343231223000 its reverse (322132343131), we get a palindrome (131665363566131).

The spelling of 131343231223000 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty-one million, two hundred twenty-three thousand".