43130023 has 4 divisors (see below), whose sum is σ = 43614720. Its totient is φ = 42645328.

The previous prime is 43129951. The next prime is 43130027. The reversal of 43130023 is 32003134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43130023 - 2¹⁷ = 42998951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43129979 and 43130006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43130027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242215 + ... + 242392.

It is an arithmetic number, because the mean of its divisors is an integer number (10903680).

Almost surely, 2^43130023 is an apocalyptic number.

43130023 is a deficient number, since it is larger than the sum of its proper divisors (484697).

43130023 is an equidigital number, since it uses as much as digits as its factorization.

43130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484696.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 43130023 is about 6567.3452018300. The cubic root of 43130023 is about 350.6925687992.

Adding to 43130023 its reverse (32003134), we get a palindrome (75133157).

The spelling of 43130023 in words is "forty-three million, one hundred thirty thousand, twenty-three".