113131231230000 has 400 divisors, whose sum is σ = 366161350260992. Its totient is φ = 30089232000000.

The previous prime is 113131231229983. The next prime is 113131231230001. The reversal of 113131231230000 is 32132131311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is not an unprimeable number, because it can be changed into a prime (113131231230001) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 34586128365 + ... + 34586131635.

Almost surely, 2^{113131231230000} is an apocalyptic number.

113131231230000 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 113131231230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183080675130496).

113131231230000 is an abundant number, since it is smaller than the sum of its proper divisors (253030119030992).

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

113131231230000 is a wasteful number, since it uses less digits than its factorization.

113131231230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974 (or 5953 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 113131231230000 its reverse (32132131311), we get a palindrome (113163363361311).

The spelling of 113131231230000 in words is "one hundred thirteen trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred thirty thousand".