43125011 has 4 divisors (see below), whose sum is σ = 43207992. Its totient is φ = 43042032.

The previous prime is 43124993. The next prime is 43125013. The reversal of 43125011 is 11052134.

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 43125011 - 2⁶ = 43124947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43125013) 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, 40706 + ... + 41751.

It is an arithmetic number, because the mean of its divisors is an integer number (10801998).

Almost surely, 2^43125011 is an apocalyptic number.

43125011 is a deficient number, since it is larger than the sum of its proper divisors (82981).

43125011 is an equidigital number, since it uses as much as digits as its factorization.

43125011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82980.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 43125011 is about 6566.9636058075. The cubic root of 43125011 is about 350.6789839912.

Adding to 43125011 its reverse (11052134), we get a palindrome (54177145).

The spelling of 43125011 in words is "forty-three million, one hundred twenty-five thousand, eleven".