231404304032 has 96 divisors (see below), whose sum is σ = 514955568960. Its totient is φ = 101449553920.

The previous prime is 231404304013. The next prime is 231404304071. The reversal of 231404304032 is 230403404132.

It is a junction number, because it is equal to n+sod(n) for n = 231404303992 and 231404304010.

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, 995588 + ... + 1205820.

It is an arithmetic number, because the mean of its divisors is an integer number (5364120510).

Almost surely, 2^231404304032 is an apocalyptic number.

231404304032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231404304032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257477784480).

231404304032 is an abundant number, since it is smaller than the sum of its proper divisors (283551264928).

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

231404304032 is a wasteful number, since it uses less digits than its factorization.

231404304032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210366 (or 210358 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 231404304032 its reverse (230403404132), we get a palindrome (461807708164).

The spelling of 231404304032 in words is "two hundred thirty-one billion, four hundred four million, three hundred four thousand, thirty-two".