231233140132 has 6 divisors (see below), whose sum is σ = 404657995238. Its totient is φ = 115616570064.

The previous prime is 231233140093. The next prime is 231233140139. The reversal of 231233140132 is 231041332132.

231233140132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 227696934976 + 3536205156 = 477176^2 + 59466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231233140097 and 231233140106.

It is not an unprimeable number, because it can be changed into a prime (231233140139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28904142513 + ... + 28904142520.

Almost surely, 2^231233140132 is an apocalyptic number.

It is an amenable number.

231233140132 is a deficient number, since it is larger than the sum of its proper divisors (173424855106).

231233140132 is a wasteful number, since it uses less digits than its factorization.

231233140132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57808285037 (or 57808285035 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 231233140132 its reverse (231041332132), we get a palindrome (462274472264).

The spelling of 231233140132 in words is "two hundred thirty-one billion, two hundred thirty-three million, one hundred forty thousand, one hundred thirty-two".