2120013020 has 24 divisors (see below), whose sum is σ = 4546753344. Its totient is φ = 829962176.

The previous prime is 2120013011. The next prime is 2120013023. The reversal of 2120013020 is 203100212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120012992 and 2120013010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120013023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1126727 + ... + 1128606.

It is an arithmetic number, because the mean of its divisors is an integer number (189448056).

Almost surely, 2^2120013020 is an apocalyptic number.

2120013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120013020 is an abundant number, since it is smaller than the sum of its proper divisors (2426740324).

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

2120013020 is a wasteful number, since it uses less digits than its factorization.

2120013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255389 (or 2255387 counting only the distinct ones).

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

The square root of 2120013020 is about 46043.5991208333. The cubic root of 2120013020 is about 1284.6342875662.

Adding to 2120013020 its reverse (203100212), we get a palindrome (2323113232).

The spelling of 2120013020 in words is "two billion, one hundred twenty million, thirteen thousand, twenty".