3123311312200 has 96 divisors (see below), whose sum is σ = 7289884879560. Its totient is φ = 1244482764800.

The previous prime is 3123311312197. The next prime is 3123311312243. The reversal of 3123311312200 is 22131133213.

It can be written as a sum of positive squares in 12 ways, for example, as 1209388477284 + 1913922834916 = 1099722^2 + 1383446^2 .

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, 68953560 + ... + 68998840.

Almost surely, 2^{3123311312200} 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 3123311312200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3644942439780).

3123311312200 is an abundant number, since it is smaller than the sum of its proper divisors (4166573567360).

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

3123311312200 is a wasteful number, since it uses less digits than its factorization.

3123311312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46627 (or 46618 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3123311312200 its reverse (22131133213), we get a palindrome (3145442445413).

The spelling of 3123311312200 in words is "three trillion, one hundred twenty-three billion, three hundred eleven million, three hundred twelve thousand, two hundred".