123125043 has 4 divisors (see below), whose sum is σ = 164166728. Its totient is φ = 82083360.

The previous prime is 123124993. The next prime is 123125053. The reversal of 123125043 is 340521321.

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

It is not a de Polignac number, because 123125043 - 2⁹ = 123124531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123125053) 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, 20520838 + ... + 20520843.

It is an arithmetic number, because the mean of its divisors is an integer number (41041682).

Almost surely, 2^123125043 is an apocalyptic number.

123125043 is a deficient number, since it is larger than the sum of its proper divisors (41041685).

123125043 is an equidigital number, since it uses as much as digits as its factorization.

123125043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41041684.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 123125043 is about 11096.1724481913. The cubic root of 123125043 is about 497.4874526940.

Adding to 123125043 its reverse (340521321), we get a palindrome (463646364).

The spelling of 123125043 in words is "one hundred twenty-three million, one hundred twenty-five thousand, forty-three".