3120200021000 has 32 divisors (see below), whose sum is σ = 7301268051480. Its totient is φ = 1248080008000.

The previous prime is 3120200020979. The next prime is 3120200021023. The reversal of 3120200021000 is 1200020213.

It is a happy number.

3120200021000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 611264403556 + 2508935617444 = 781834^2 + 1583962^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560099011 + ... + 1560101010.

Almost surely, 2^{3120200021000} is an apocalyptic number.

It is an amenable number.

3120200021000 is an abundant number, since it is smaller than the sum of its proper divisors (4181068030480).

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

3120200021000 is a wasteful number, since it uses less digits than its factorization.

3120200021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120200042 (or 3120200028 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 3120200021000 its reverse (1200020213), we get a palindrome (3121400041213).

The spelling of 3120200021000 in words is "three trillion, one hundred twenty billion, two hundred million, twenty-one thousand".