43121012224240 has 40 divisors (see below), whose sum is σ = 100518119428608. Its totient is φ = 17203369877760.

The previous prime is 43121012224207. The next prime is 43121012224337. The reversal of 43121012224240 is 4242221012134.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 43121012224199 and 43121012224208.

It is a congruent number.

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, 703641231 + ... + 703702510.

Almost surely, 2^{43121012224240} is an apocalyptic number.

43121012224240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43121012224240 is an abundant number, since it is smaller than the sum of its proper divisors (57397107204368).

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

43121012224240 is a wasteful number, since it uses less digits than its factorization.

43121012224240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407344137 (or 1407344131 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 43121012224240 its reverse (4242221012134), we get a palindrome (47363233236374).

The spelling of 43121012224240 in words is "forty-three trillion, one hundred twenty-one billion, twelve million, two hundred twenty-four thousand, two hundred forty".