43223011121 has 2 divisors, whose sum is σ = 43223011122. Its totient is φ = 43223011120.

The previous prime is 43223011067. The next prime is 43223011129. The reversal of 43223011121 is 12111032234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42574544896 + 648466225 = 206336^2 + 25465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43223011121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43223011093 and 43223011102.

It is not a weakly prime, because it can be changed into another prime (43223011129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21611505560 + 21611505561.

It is an arithmetic number, because the mean of its divisors is an integer number (21611505561).

Almost surely, 2^43223011121 is an apocalyptic number.

It is an amenable number.

43223011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

43223011121 is an equidigital number, since it uses as much as digits as its factorization.

43223011121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 43223011121 its reverse (12111032234), we get a palindrome (55334043355).

The spelling of 43223011121 in words is "forty-three billion, two hundred twenty-three million, eleven thousand, one hundred twenty-one".