31424024032 has 48 divisors (see below), whose sum is σ = 63219502080. Its totient is φ = 15368672128.

The previous prime is 31424024029. The next prime is 31424024041. The reversal of 31424024032 is 23042042413.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31424023988 and 31424024006.

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, 3061533 + ... + 3071779.

It is an arithmetic number, because the mean of its divisors is an integer number (1317072960).

Almost surely, 2^31424024032 is an apocalyptic number.

31424024032 is a gapful number since it is divisible by the number (32) 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 31424024032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31609751040).

31424024032 is an abundant number, since it is smaller than the sum of its proper divisors (31795478048).

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

31424024032 is a wasteful number, since it uses less digits than its factorization.

31424024032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12343 (or 12335 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 31424024032 its reverse (23042042413), we get a palindrome (54466066445).

The spelling of 31424024032 in words is "thirty-one billion, four hundred twenty-four million, twenty-four thousand, thirty-two".