43424332121 has 2 divisors, whose sum is σ = 43424332122. Its totient is φ = 43424332120.

The previous prime is 43424332103. The next prime is 43424332139. The reversal of 43424332121 is 12123342434.

It is a balanced prime because it is at equal distance from previous prime (43424332103) and next prime (43424332139).

It can be written as a sum of positive squares in only one way, i.e., 30069294025 + 13355038096 = 173405^2 + 115564^2 .

It is a cyclic number.

It is not a de Polignac number, because 43424332121 - 2²⁶ = 43357223257 is a prime.

It is not a weakly prime, because it can be changed into another prime (43424332141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712166060 + 21712166061.

It is an arithmetic number, because the mean of its divisors is an integer number (21712166061).

Almost surely, 2^43424332121 is an apocalyptic number.

It is an amenable number.

43424332121 is a deficient number, since it is larger than the sum of its proper divisors (1).

43424332121 is an equidigital number, since it uses as much as digits as its factorization.

43424332121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 29.

Adding to 43424332121 its reverse (12123342434), we get a palindrome (55547674555).

The spelling of 43424332121 in words is "forty-three billion, four hundred twenty-four million, three hundred thirty-two thousand, one hundred twenty-one".