31324134424 has 96 divisors (see below), whose sum is σ = 67505245920. Its totient is φ = 13590720000.

The previous prime is 31324134403. The next prime is 31324134433. The reversal of 31324134424 is 42443142313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13379494 + ... + 13381834.

It is an arithmetic number, because the mean of its divisors is an integer number (703179645).

Almost surely, 2^31324134424 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 31324134424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33752622960).

31324134424 is an abundant number, since it is smaller than the sum of its proper divisors (36181111496).

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

31324134424 is a wasteful number, since it uses less digits than its factorization.

31324134424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993 (or 2978 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

Adding to 31324134424 its reverse (42443142313), we get a palindrome (73767276737).

The spelling of 31324134424 in words is "thirty-one billion, three hundred twenty-four million, one hundred thirty-four thousand, four hundred twenty-four".