43202110121 has 2 divisors, whose sum is σ = 43202110122. Its totient is φ = 43202110120.

The previous prime is 43202110117. The next prime is 43202110153. The reversal of 43202110121 is 12101120234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41162323225 + 2039786896 = 202885^2 + 45164^2 .

It is a cyclic number.

It is not a de Polignac number, because 43202110121 - 2² = 43202110117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43202110121.

It is not a weakly prime, because it can be changed into another prime (43202110921) 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, 21601055060 + 21601055061.

It is an arithmetic number, because the mean of its divisors is an integer number (21601055061).

Almost surely, 2^43202110121 is an apocalyptic number.

It is an amenable number.

43202110121 is a deficient number, since it is larger than the sum of its proper divisors (1).

43202110121 is an equidigital number, since it uses as much as digits as its factorization.

43202110121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 43202110121 its reverse (12101120234), we get a palindrome (55303230355).

The spelling of 43202110121 in words is "forty-three billion, two hundred two million, one hundred ten thousand, one hundred twenty-one".