3012100120 has 128 divisors (see below), whose sum is σ = 7581911040. Its totient is φ = 1071544320.

The previous prime is 3012100093. The next prime is 3012100121. The reversal of 3012100120 is 210012103.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 3012100097 and 3012100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012100121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 904779 + ... + 908101.

It is an arithmetic number, because the mean of its divisors is an integer number (59233680).

Almost surely, 2^3012100120 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 3012100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3790955520).

3012100120 is an abundant number, since it is smaller than the sum of its proper divisors (4569810920).

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

3012100120 is a wasteful number, since it uses less digits than its factorization.

3012100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425 (or 3421 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 3012100120 is about 54882.6030723762. The cubic root of 3012100120 is about 1444.1860128233.

Adding to 3012100120 its reverse (210012103), we get a palindrome (3222112223).

The spelling of 3012100120 in words is "three billion, twelve million, one hundred thousand, one hundred twenty".