43520122541121 has 4 divisors (see below), whose sum is σ = 58026830054832. Its totient is φ = 29013415027412.

The previous prime is 43520122541057. The next prime is 43520122541123. The reversal of 43520122541121 is 12114522102534.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43520122541121 - 2⁶ = 43520122541057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43520122541123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7253353756851 + ... + 7253353756856.

It is an arithmetic number, because the mean of its divisors is an integer number (14506707513708).

Almost surely, 2^{43520122541121} is an apocalyptic number.

It is an amenable number.

43520122541121 is a deficient number, since it is larger than the sum of its proper divisors (14506707513711).

43520122541121 is a wasteful number, since it uses less digits than its factorization.

43520122541121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14506707513710.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 43520122541121 its reverse (12114522102534), we get a palindrome (55634644643655).

The spelling of 43520122541121 in words is "forty-three trillion, five hundred twenty billion, one hundred twenty-two million, five hundred forty-one thousand, one hundred twenty-one".