43443123101 has 6 divisors (see below), whose sum is σ = 50535877950. Its totient is φ = 37236962616.

The previous prime is 43443123089. The next prime is 43443123107. The reversal of 43443123101 is 10132134434.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23754823876 + 19688299225 = 154126^2 + 140315^2 .

It is not a de Polignac number, because 43443123101 - 2⁶ = 43443123037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43443123107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 443297126 + ... + 443297223.

It is an arithmetic number, because the mean of its divisors is an integer number (8422646325).

Almost surely, 2^43443123101 is an apocalyptic number.

It is an amenable number.

43443123101 is a deficient number, since it is larger than the sum of its proper divisors (7092754849).

43443123101 is an equidigital number, since it uses as much as digits as its factorization.

43443123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886594363 (or 886594356 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 43443123101 its reverse (10132134434), we get a palindrome (53575257535).

The spelling of 43443123101 in words is "forty-three billion, four hundred forty-three million, one hundred twenty-three thousand, one hundred one".