231321200132 has 48 divisors (see below), whose sum is σ = 476703964800. Its totient is φ = 97106338560.

The previous prime is 231321200111. The next prime is 231321200137. The reversal of 231321200132 is 231002123132.

231321200132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231321200137) 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 15 ways as a sum of consecutive naturals, for example, 3911657 + ... + 3970352.

It is an arithmetic number, because the mean of its divisors is an integer number (9931332600).

Almost surely, 2^231321200132 is an apocalyptic number.

231321200132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231321200132 is an abundant number, since it is smaller than the sum of its proper divisors (245382764668).

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

231321200132 is a wasteful number, since it uses less digits than its factorization.

231321200132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882076 (or 7882074 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231321200132 its reverse (231002123132), we get a palindrome (462323323264).

The spelling of 231321200132 in words is "two hundred thirty-one billion, three hundred twenty-one million, two hundred thousand, one hundred thirty-two".