231421431032 has 32 divisors (see below), whose sum is σ = 473455411200. Its totient is φ = 105170805600.

The previous prime is 231421431029. The next prime is 231421431041. The reversal of 231421431032 is 230134124132.

It is a junction number, because it is equal to n+sod(n) for n = 231421430992 and 231421431010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193607 + ... + 707337.

It is an arithmetic number, because the mean of its divisors is an integer number (14795481600).

Almost surely, 2^231421431032 is an apocalyptic number.

231421431032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231421431032 is an abundant number, since it is smaller than the sum of its proper divisors (242033980168).

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

231421431032 is a wasteful number, since it uses less digits than its factorization.

231421431032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518867 (or 518863 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 231421431032 its reverse (230134124132), we get a palindrome (461555555164).

The spelling of 231421431032 in words is "two hundred thirty-one billion, four hundred twenty-one million, four hundred thirty-one thousand, thirty-two".