131232223232 has 208 divisors, whose sum is σ = 292479247872. Its totient is φ = 58379304960.

The previous prime is 131232223207. The next prime is 131232223249. The reversal of 131232223232 is 232322232131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785821613 + ... + 785821779.

Almost surely, 2^131232223232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131232223232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146239623936).

131232223232 is an abundant number, since it is smaller than the sum of its proper divisors (161247024640).

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

131232223232 is a wasteful number, since it uses less digits than its factorization.

131232223232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 450 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

Adding to 131232223232 its reverse (232322232131), we get a palindrome (363554455363).

The spelling of 131232223232 in words is "one hundred thirty-one billion, two hundred thirty-two million, two hundred twenty-three thousand, two hundred thirty-two".