123432043 has 4 divisors (see below), whose sum is σ = 141065200. Its totient is φ = 105798888.

The previous prime is 123432013. The next prime is 123432077. The reversal of 123432043 is 340234321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340234321 = 7 ⋅48604903.

It is a cyclic number.

It is not a de Polignac number, because 123432043 - 2¹³ = 123423851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123432013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8816568 + ... + 8816581.

It is an arithmetic number, because the mean of its divisors is an integer number (35266300).

Almost surely, 2^123432043 is an apocalyptic number.

123432043 is a deficient number, since it is larger than the sum of its proper divisors (17633157).

123432043 is an equidigital number, since it uses as much as digits as its factorization.

123432043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17633156.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 123432043 is about 11109.9974347432. The cubic root of 123432043 is about 497.9005879423.

Adding to 123432043 its reverse (340234321), we get a palindrome (463666364).

The spelling of 123432043 in words is "one hundred twenty-three million, four hundred thirty-two thousand, forty-three".