43122425321 has 2 divisors, whose sum is σ = 43122425322. Its totient is φ = 43122425320.

The previous prime is 43122425299. The next prime is 43122425341. The reversal of 43122425321 is 12352422134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40105669696 + 3016755625 = 200264^2 + 54925^2 .

It is a cyclic number.

It is not a de Polignac number, because 43122425321 - 2¹⁰ = 43122424297 is a prime.

It is not a weakly prime, because it can be changed into another prime (43122425341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21561212660 + 21561212661.

It is an arithmetic number, because the mean of its divisors is an integer number (21561212661).

Almost surely, 2^43122425321 is an apocalyptic number.

It is an amenable number.

43122425321 is a deficient number, since it is larger than the sum of its proper divisors (1).

43122425321 is an equidigital number, since it uses as much as digits as its factorization.

43122425321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

Adding to 43122425321 its reverse (12352422134), we get a palindrome (55474847455).

The spelling of 43122425321 in words is "forty-three billion, one hundred twenty-two million, four hundred twenty-five thousand, three hundred twenty-one".