31400200500 has 96 divisors (see below), whose sum is σ = 91485313920. Its totient is φ = 8368998400.

The previous prime is 31400200487. The next prime is 31400200529. The reversal of 31400200500 is 500200413.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 31400200500.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 3684244 + ... + 3692756.

It is an arithmetic number, because the mean of its divisors is an integer number (952972020).

Almost surely, 2^31400200500 is an apocalyptic number.

31400200500 is a gapful number since it is divisible by the number (30) 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 31400200500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45742656960).

31400200500 is an abundant number, since it is smaller than the sum of its proper divisors (60085113420).

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

31400200500 is a wasteful number, since it uses less digits than its factorization.

31400200500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10994 (or 10982 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 31400200500 its reverse (500200413), we get a palindrome (31900400913).

The spelling of 31400200500 in words is "thirty-one billion, four hundred million, two hundred thousand, five hundred".