231330322132 has 48 divisors (see below), whose sum is σ = 498303688960. Its totient is φ = 91505417472.

The previous prime is 231330322117. The next prime is 231330322141. The reversal of 231330322132 is 231223033132.

It is a junction number, because it is equal to n+sod(n) for n = 231330322097 and 231330322106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3992344 + ... + 4049872.

Almost surely, 2^231330322132 is an apocalyptic number.

It is an amenable number.

231330322132 is an abundant number, since it is smaller than the sum of its proper divisors (266973366828).

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

231330322132 is a wasteful number, since it uses less digits than its factorization.

231330322132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68600 (or 68598 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 231330322132 its reverse (231223033132), we get a palindrome (462553355264).

The spelling of 231330322132 in words is "two hundred thirty-one billion, three hundred thirty million, three hundred twenty-two thousand, one hundred thirty-two".