43123352101 has 4 divisors (see below), whose sum is σ = 43125923232. Its totient is φ = 43120780972.

The previous prime is 43123352093. The next prime is 43123352113. The reversal of 43123352101 is 10125332134.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43123352101 - 2³ = 43123352093 is a prime.

It is a super-2 number, since 2×43123352101² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43123352161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260241 + ... + 1294006.

It is an arithmetic number, because the mean of its divisors is an integer number (10781480808).

Almost surely, 2^43123352101 is an apocalyptic number.

It is an amenable number.

43123352101 is a deficient number, since it is larger than the sum of its proper divisors (2571131).

43123352101 is a wasteful number, since it uses less digits than its factorization.

43123352101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571130.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 43123352101 its reverse (10125332134), we get a palindrome (53248684235).

The spelling of 43123352101 in words is "forty-three billion, one hundred twenty-three million, three hundred fifty-two thousand, one hundred one".