3120404020 has 48 divisors (see below), whose sum is σ = 6849739008. Its totient is φ = 1191801600.

The previous prime is 3120404017. The next prime is 3120404033. The reversal of 3120404020 is 204040213.

It is a junction number, because it is equal to n+sod(n) for n = 3120403985 and 3120404003.

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 15 ways as a sum of consecutive naturals, for example, 270817 + ... + 282103.

It is an arithmetic number, because the mean of its divisors is an integer number (142702896).

Almost surely, 2^3120404020 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 3120404020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3424869504).

3120404020 is an abundant number, since it is smaller than the sum of its proper divisors (3729334988).

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

3120404020 is a wasteful number, since it uses less digits than its factorization.

3120404020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11920 (or 11918 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3120404020 is about 55860.5766171457. The cubic root of 3120404020 is about 1461.2917853408.

Adding to 3120404020 its reverse (204040213), we get a palindrome (3324444233).

The spelling of 3120404020 in words is "three billion, one hundred twenty million, four hundred four thousand, twenty".