31324344200 has 96 divisors (see below), whose sum is σ = 75429937800. Its totient is φ = 12083312640.

The previous prime is 31324344197. The next prime is 31324344221. The reversal of 31324344200 is 244342313.

It can be written as a sum of positive squares in 12 ways, for example, as 1444456036 + 29879888164 = 38006^2 + 172858^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31324344200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5779892 + ... + 5785308.

Almost surely, 2^31324344200 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 31324344200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37714968900).

31324344200 is an abundant number, since it is smaller than the sum of its proper divisors (44105593600).

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

31324344200 is a wasteful number, since it uses less digits than its factorization.

31324344200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459 (or 6450 counting only the distinct ones).

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

Adding to 31324344200 its reverse (244342313), we get a palindrome (31568686513).

The spelling of 31324344200 in words is "thirty-one billion, three hundred twenty-four million, three hundred forty-four thousand, two hundred".