31244130200 has 96 divisors (see below), whose sum is σ = 75599848800. Its totient is φ = 11994071040.

The previous prime is 31244130193. The next prime is 31244130217. The reversal of 31244130200 is 203144213.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 952472 + ... + 984728.

It is an arithmetic number, because the mean of its divisors is an integer number (787498425).

Almost surely, 2^31244130200 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 31244130200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37799924400).

31244130200 is an abundant number, since it is smaller than the sum of its proper divisors (44355718600).

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

31244130200 is a wasteful number, since it uses less digits than its factorization.

31244130200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32469 (or 32460 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31244130200 its reverse (203144213), we get a palindrome (31447274413).

The spelling of 31244130200 in words is "thirty-one billion, two hundred forty-four million, one hundred thirty thousand, two hundred".