124120043 has 4 divisors (see below), whose sum is σ = 131421240. Its totient is φ = 116818848.

The previous prime is 124120033. The next prime is 124120049. The reversal of 124120043 is 340021421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340021421 = 7283 ⋅46687.

It is a cyclic number.

It is not a de Polignac number, because 124120043 - 2¹⁶ = 124054507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7301179 = 124120043 / (1 + 2 + 4 + 1 + 2 + 0 + 0 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124120049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3650573 + ... + 3650606.

It is an arithmetic number, because the mean of its divisors is an integer number (32855310).

Almost surely, 2^124120043 is an apocalyptic number.

124120043 is a deficient number, since it is larger than the sum of its proper divisors (7301197).

124120043 is an equidigital number, since it uses as much as digits as its factorization.

124120043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301196.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 124120043 is about 11140.9175115876. The cubic root of 124120043 is about 498.8239600287.

Adding to 124120043 its reverse (340021421), we get a palindrome (464141464).

The spelling of 124120043 in words is "one hundred twenty-four million, one hundred twenty thousand, forty-three".