31230332232 has 256 divisors, whose sum is σ = 91581235200. Its totient is φ = 8781696000.

The previous prime is 31230332207. The next prime is 31230332269. The reversal of 31230332232 is 23223303213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42957453 + ... + 42958179.

It is an arithmetic number, because the mean of its divisors is an integer number (357739200).

Almost surely, 2^31230332232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31230332232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45790617600).

31230332232 is an abundant number, since it is smaller than the sum of its proper divisors (60350902968).

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

31230332232 is a wasteful number, since it uses less digits than its factorization.

31230332232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 31230332232 its reverse (23223303213), we get a palindrome (54453635445).

The spelling of 31230332232 in words is "thirty-one billion, two hundred thirty million, three hundred thirty-two thousand, two hundred thirty-two".