43144323123 has 32 divisors (see below), whose sum is σ = 63403038720. Its totient is φ = 25879587840.

The previous prime is 43144323113. The next prime is 43144323127. The reversal of 43144323123 is 32132344134.

It is a happy number.

It is not a de Polignac number, because 43144323123 - 2⁸ = 43144322867 is a prime.

It is a super-2 number, since 2×43144323123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43144323127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1256163 + ... + 1290051.

It is an arithmetic number, because the mean of its divisors is an integer number (1981344960).

Almost surely, 2^43144323123 is an apocalyptic number.

43144323123 is a deficient number, since it is larger than the sum of its proper divisors (20258715597).

43144323123 is a wasteful number, since it uses less digits than its factorization.

43144323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34299.

The product of its digits is 20736, while the sum is 30.

Adding to 43144323123 its reverse (32132344134), we get a palindrome (75276667257).

The spelling of 43144323123 in words is "forty-three billion, one hundred forty-four million, three hundred twenty-three thousand, one hundred twenty-three".