43412123 has 4 divisors (see below), whose sum is σ = 43842048. Its totient is φ = 42982200.

The previous prime is 43412119. The next prime is 43412143. The reversal of 43412123 is 32121434.

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 43412123 - 2² = 43412119 is a prime.

It is a super-2 number, since 2×43412123² = 3769224846734258, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43412095 and 43412104.

It is not an unprimeable number, because it can be changed into a prime (43412113) 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, 214811 + ... + 215012.

It is an arithmetic number, because the mean of its divisors is an integer number (10960512).

Almost surely, 2^43412123 is an apocalyptic number.

43412123 is a deficient number, since it is larger than the sum of its proper divisors (429925).

43412123 is a wasteful number, since it uses less digits than its factorization.

43412123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429924.

The product of its digits is 576, while the sum is 20.

The square root of 43412123 is about 6588.7876730094. The cubic root of 43412123 is about 351.4554980092.

Adding to 43412123 its reverse (32121434), we get a palindrome (75533557).

The spelling of 43412123 in words is "forty-three million, four hundred twelve thousand, one hundred twenty-three".