2031012120 has 128 divisors (see below), whose sum is σ = 6436362240. Its totient is φ = 511902720.

The previous prime is 2031012097. The next prime is 2031012133. The reversal of 2031012120 is 212101302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2031012096 and 2031012105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153612 + ... + 166308.

It is an arithmetic number, because the mean of its divisors is an integer number (50284080).

Almost surely, 2^2031012120 is an apocalyptic number.

2031012120 is a gapful number since it is divisible by the number (20) 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 2031012120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3218181120).

2031012120 is an abundant number, since it is smaller than the sum of its proper divisors (4405350120).

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

2031012120 is a wasteful number, since it uses less digits than its factorization.

2031012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12785 (or 12781 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2031012120 is about 45066.7518243771. The cubic root of 2031012120 is about 1266.3998148228.

Adding to 2031012120 its reverse (212101302), we get a palindrome (2243113422).

The spelling of 2031012120 in words is "two billion, thirty-one million, twelve thousand, one hundred twenty".