43505340121052 has 12 divisors (see below), whose sum is σ = 76135984561896. Its totient is φ = 21752201674800.

The previous prime is 43505340121013. The next prime is 43505340121121. The reversal of 43505340121052 is 25012104350534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116887403 + ... + 117259010.

It is an arithmetic number, because the mean of its divisors is an integer number (6344665380158).

Almost surely, 2^{43505340121052} is an apocalyptic number.

It is an amenable number.

43505340121052 is a deficient number, since it is larger than the sum of its proper divisors (32630644440844).

43505340121052 is a wasteful number, since it uses less digits than its factorization.

43505340121052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234192868 (or 234192866 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 43505340121052 its reverse (25012104350534), we get a palindrome (68517444471586).

The spelling of 43505340121052 in words is "forty-three trillion, five hundred five billion, three hundred forty million, one hundred twenty-one thousand, fifty-two".