131231330232 has 64 divisors (see below), whose sum is σ = 336967948800. Its totient is φ = 42564130560.

The previous prime is 131231330183. The next prime is 131231330239. The reversal of 131231330232 is 232033132131.

131231330232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131231330239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196993 + ... + 548879.

It is an arithmetic number, because the mean of its divisors is an integer number (5265124200).

Almost surely, 2^131231330232 is an apocalyptic number.

131231330232 is a gapful number since it is divisible by the number (12) 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 131231330232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168483974400).

131231330232 is an abundant number, since it is smaller than the sum of its proper divisors (205736618568).

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

131231330232 is a wasteful number, since it uses less digits than its factorization.

131231330232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352316 (or 352312 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 131231330232 its reverse (232033132131), we get a palindrome (363264462363).

The spelling of 131231330232 in words is "one hundred thirty-one billion, two hundred thirty-one million, three hundred thirty thousand, two hundred thirty-two".