43352145212121 has 96 divisors (see below), whose sum is σ = 65268818933760. Its totient is φ = 27710243638272.

The previous prime is 43352145212093. The next prime is 43352145212161. The reversal of 43352145212121 is 12121254125334.

43352145212121 is a `hidden beast` number, since 4 + 3 + 3 + 5 + 2 + 1 + 4 + 521 + 2 + 121 = 666.

It is not a de Polignac number, because 43352145212121 - 2¹⁰ = 43352145211097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43352145212161) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3845656141 + ... + 3845667413.

It is an arithmetic number, because the mean of its divisors is an integer number (679883530560).

Almost surely, 2^{43352145212121} is an apocalyptic number.

It is an amenable number.

43352145212121 is a deficient number, since it is larger than the sum of its proper divisors (21916673721639).

43352145212121 is a wasteful number, since it uses less digits than its factorization.

43352145212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12295 (or 12292 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 43352145212121 its reverse (12121254125334), we get a palindrome (55473399337455).

The spelling of 43352145212121 in words is "forty-three trillion, three hundred fifty-two billion, one hundred forty-five million, two hundred twelve thousand, one hundred twenty-one".