131213333232 has 120 divisors (see below), whose sum is σ = 371174026080. Its totient is φ = 43267530240.

The previous prime is 131213333231. The next prime is 131213333267. The reversal of 131213333232 is 232333312131.

131213333232 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 1 + 333 + 323 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 131213333196 and 131213333205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131213333231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10368733 + ... + 10381379.

It is an arithmetic number, because the mean of its divisors is an integer number (3093116884).

Almost surely, 2^131213333232 is an apocalyptic number.

131213333232 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 131213333232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185587013040).

131213333232 is an abundant number, since it is smaller than the sum of its proper divisors (239960692848).

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

131213333232 is a wasteful number, since it uses less digits than its factorization.

131213333232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13431 (or 13422 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 131213333232 its reverse (232333312131), we get a palindrome (363546645363).

The spelling of 131213333232 in words is "one hundred thirty-one billion, two hundred thirteen million, three hundred thirty-three thousand, two hundred thirty-two".