43123222231 has 8 divisors (see below), whose sum is σ = 43422659280. Its totient is φ = 42824763072.

The previous prime is 43123222171. The next prime is 43123222253. The reversal of 43123222231 is 13222232134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43123222231 - 2¹³ = 43123214039 is a prime.

It is a super-2 number, since 2×43123222231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43123222196 and 43123222205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43123226231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155860 + ... + 332473.

It is an arithmetic number, because the mean of its divisors is an integer number (5427832410).

Almost surely, 2^43123222231 is an apocalyptic number.

43123222231 is a deficient number, since it is larger than the sum of its proper divisors (299437049).

43123222231 is a wasteful number, since it uses less digits than its factorization.

43123222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488945.

The product of its digits is 3456, while the sum is 25.

Adding to 43123222231 its reverse (13222232134), we get a palindrome (56345454365).

The spelling of 43123222231 in words is "forty-three billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred thirty-one".