2031144220 has 24 divisors (see below), whose sum is σ = 4874746464. Its totient is φ = 696392256.

The previous prime is 2031144197. The next prime is 2031144221. The reversal of 2031144220 is 224411302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031144221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7253947 + ... + 7254226.

It is an arithmetic number, because the mean of its divisors is an integer number (203114436).

Almost surely, 2^2031144220 is an apocalyptic number.

2031144220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031144220 is an abundant number, since it is smaller than the sum of its proper divisors (2843602244).

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

2031144220 is a wasteful number, since it uses less digits than its factorization.

2031144220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14508189 (or 14508187 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2031144220 is about 45068.2174042861. The cubic root of 2031144220 is about 1266.4272703932.

Adding to 2031144220 its reverse (224411302), we get a palindrome (2255555522).

The spelling of 2031144220 in words is "two billion, thirty-one million, one hundred forty-four thousand, two hundred twenty".