3123320220000 has 360 divisors, whose sum is σ = 11398868456976. Its totient is φ = 810373248000.

The previous prime is 3123320219993. The next prime is 3123320220029. The reversal of 3123320220000 is 220233213.

It is a happy number.

3123320220000 is a `hidden beast` number, since 3 + 123 + 320 + 220 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 6425517 + ... + 6894483.

Almost surely, 2^{3123320220000} is an apocalyptic number.

3123320220000 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 3123320220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5699434228488).

3123320220000 is an abundant number, since it is smaller than the sum of its proper divisors (8275548236976).

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

3123320220000 is a wasteful number, since it uses less digits than its factorization.

3123320220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469040 (or 469014 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 3123320220000 its reverse (220233213), we get a palindrome (3123540453213).

The spelling of 3123320220000 in words is "three trillion, one hundred twenty-three billion, three hundred twenty million, two hundred twenty thousand".