2031143200 has 72 divisors (see below), whose sum is σ = 4966908660. Its totient is φ = 811084800.

The previous prime is 2031143189. The next prime is 2031143203. The reversal of 2031143200 is 23411302.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 768620176 + 1262523024 = 27724^2 + 35532^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2031143203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 565410 + ... + 568990.

Almost surely, 2^2031143200 is an apocalyptic number.

2031143200 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 2031143200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483454330).

2031143200 is an abundant number, since it is smaller than the sum of its proper divisors (2935765460).

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

2031143200 is a wasteful number, since it uses less digits than its factorization.

2031143200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4310 (or 4297 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2031143200 is about 45068.2060881061. The cubic root of 2031143200 is about 1266.4270584017.

Adding to 2031143200 its reverse (23411302), we get a palindrome (2054554502).

The spelling of 2031143200 in words is "two billion, thirty-one million, one hundred forty-three thousand, two hundred".