43053231304040 has 32 divisors (see below), whose sum is σ = 96891801707880. Its totient is φ = 17217375850752.

The previous prime is 43053231304021. The next prime is 43053231304093. The reversal of 43053231304040 is 4040313235034.

It can be written as a sum of positive squares in 4 ways, for example, as 32618742083524 + 10434489220516 = 5711282^2 + 3230246^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43053231303988 and 43053231304006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122217887 + ... + 122569646.

Almost surely, 2^{43053231304040} is an apocalyptic number.

43053231304040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43053231304040 is an abundant number, since it is smaller than the sum of its proper divisors (53838570403840).

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

43053231304040 is a wasteful number, since it uses less digits than its factorization.

43053231304040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244791941 (or 244791937 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 43053231304040 its reverse (4040313235034), we get a palindrome (47093544539074).

The spelling of 43053231304040 in words is "forty-three trillion, fifty-three billion, two hundred thirty-one million, three hundred four thousand, forty".