124430213 has 4 divisors (see below), whose sum is σ = 128720940. Its totient is φ = 120139488.

The previous prime is 124430177. The next prime is 124430227. The reversal of 124430213 is 312034421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62995969 + 61434244 = 7937^2 + 7838^2 .

It is a cyclic number.

It is not a de Polignac number, because 124430213 - 2²² = 120235909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124432213) 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, 2145320 + ... + 2145377.

It is an arithmetic number, because the mean of its divisors is an integer number (32180235).

Almost surely, 2^124430213 is an apocalyptic number.

It is an amenable number.

124430213 is a deficient number, since it is larger than the sum of its proper divisors (4290727).

124430213 is an equidigital number, since it uses as much as digits as its factorization.

124430213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290726.

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

The square root of 124430213 is about 11154.8291336085. The cubic root of 124430213 is about 499.2391267311.

Adding to 124430213 its reverse (312034421), we get a palindrome (436464634).

The spelling of 124430213 in words is "one hundred twenty-four million, four hundred thirty thousand, two hundred thirteen".