113131231230 has 64 divisors (see below), whose sum is σ = 272227677696. Its totient is φ = 30089232000.

The previous prime is 113131231217. The next prime is 113131231237. The reversal of 113131231230 is 32132131311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 113131231197 and 113131231206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113131231237) 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 31 ways as a sum of consecutive naturals, for example, 34584495 + ... + 34587765.

It is an arithmetic number, because the mean of its divisors is an integer number (4253557464).

Almost surely, 2^113131231230 is an apocalyptic number.

113131231230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113131231230 is an abundant number, since it is smaller than the sum of its proper divisors (159096446466).

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

113131231230 is a wasteful number, since it uses less digits than its factorization.

113131231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5953.

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

Adding to 113131231230 its reverse (32132131311), we get a palindrome (145263362541).

The spelling of 113131231230 in words is "one hundred thirteen billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred thirty".