2031132120 has 128 divisors (see below), whose sum is σ = 6474479040. Its totient is φ = 507985920.

The previous prime is 2031132109. The next prime is 2031132127. The reversal of 2031132120 is 212311302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2031132120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031132127) 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, 636930 + ... + 640110.

Almost surely, 2^2031132120 is an apocalyptic number.

2031132120 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 2031132120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3237239520).

2031132120 is an abundant number, since it is smaller than the sum of its proper divisors (4443346920).

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

2031132120 is a wasteful number, since it uses less digits than its factorization.

2031132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525 (or 3521 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2031132120 is about 45068.0831631433. The cubic root of 2031132120 is about 1266.4247555873.

Adding to 2031132120 its reverse (212311302), we get a palindrome (2243443422).

The spelling of 2031132120 in words is "two billion, thirty-one million, one hundred thirty-two thousand, one hundred twenty".