2031144324440 has 64 divisors (see below), whose sum is σ = 5697755516160. Its totient is φ = 633083944320.

The previous prime is 2031144324439. The next prime is 2031144324479. The reversal of 2031144324440 is 444234411302.

It is a junction number, because it is equal to n+sod(n) for n = 2031144324397 and 2031144324406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329728142 + ... + 329734301.

It is an arithmetic number, because the mean of its divisors is an integer number (89027429940).

Almost surely, 2^{2031144324440} is an apocalyptic number.

2031144324440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031144324440 is an abundant number, since it is smaller than the sum of its proper divisors (3666611191720).

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

2031144324440 is a wasteful number, since it uses less digits than its factorization.

2031144324440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659462472 (or 659462468 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 2031144324440 its reverse (444234411302), we get a palindrome (2475378735742).

The spelling of 2031144324440 in words is "two trillion, thirty-one billion, one hundred forty-four million, three hundred twenty-four thousand, four hundred forty".