43123042201 has 2 divisors, whose sum is σ = 43123042202. Its totient is φ = 43123042200.

The previous prime is 43123042177. The next prime is 43123042229. The reversal of 43123042201 is 10224032134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32328040000 + 10795002201 = 179800^2 + 103899^2 .

It is a cyclic number.

It is not a de Polignac number, because 43123042201 - 2⁵ = 43123042169 is a prime.

It is not a weakly prime, because it can be changed into another prime (43123042301) 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, 21561521100 + 21561521101.

It is an arithmetic number, because the mean of its divisors is an integer number (21561521101).

Almost surely, 2^43123042201 is an apocalyptic number.

It is an amenable number.

43123042201 is a deficient number, since it is larger than the sum of its proper divisors (1).

43123042201 is an equidigital number, since it uses as much as digits as its factorization.

43123042201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 43123042201 its reverse (10224032134), we get a palindrome (53347074335).

The spelling of 43123042201 in words is "forty-three billion, one hundred twenty-three million, forty-two thousand, two hundred one".