131230031332232 has 128 divisors (see below), whose sum is σ = 308944078387200. Its totient is φ = 50953797024768.

The previous prime is 131230031332223. The next prime is 131230031332237. The reversal of 131230031332232 is 232233130032131.

It is a super-2 number, since 2×131230031332232² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131230031332195 and 131230031332204.

It is not an unprimeable number, because it can be changed into a prime (131230031332237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113390363 + ... + 114541845.

It is an arithmetic number, because the mean of its divisors is an integer number (2413625612400).

Almost surely, 2^{131230031332232} 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 131230031332232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154472039193600).

131230031332232 is an abundant number, since it is smaller than the sum of its proper divisors (177714047054968).

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

131230031332232 is a wasteful number, since it uses less digits than its factorization.

131230031332232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156195 (or 1156191 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 131230031332232 its reverse (232233130032131), we get a palindrome (363463161364363).

The spelling of 131230031332232 in words is "one hundred thirty-one trillion, two hundred thirty billion, thirty-one million, three hundred thirty-two thousand, two hundred thirty-two".