3123203112200 has 96 divisors (see below), whose sum is σ = 7368995541600. Its totient is φ = 1230877570560.

The previous prime is 3123203112187. The next prime is 3123203112343. The reversal of 3123203112200 is 22113023213.

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

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, 4727399 + ... + 5347401.

It is an arithmetic number, because the mean of its divisors is an integer number (76760370225).

Almost surely, 2^{3123203112200} 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 3123203112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3684497770800).

3123203112200 is an abundant number, since it is smaller than the sum of its proper divisors (4245792429400).

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

3123203112200 is a wasteful number, since it uses less digits than its factorization.

3123203112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620391 (or 620382 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3123203112200 its reverse (22113023213), we get a palindrome (3145316135413).

The spelling of 3123203112200 in words is "three trillion, one hundred twenty-three billion, two hundred three million, one hundred twelve thousand, two hundred".