124206113 has 4 divisors (see below), whose sum is σ = 124229700. Its totient is φ = 124182528.

The previous prime is 124206109. The next prime is 124206143. The reversal of 124206113 is 311602421.

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 82319329 + 41886784 = 9073^2 + 6472^2 .

It is a cyclic number.

It is not a de Polignac number, because 124206113 - 2² = 124206109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124206143) 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, 113 + ... + 15761.

It is an arithmetic number, because the mean of its divisors is an integer number (31057425).

Almost surely, 2^124206113 is an apocalyptic number.

It is an amenable number.

124206113 is a deficient number, since it is larger than the sum of its proper divisors (23587).

124206113 is an equidigital number, since it uses as much as digits as its factorization.

124206113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23586.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 124206113 is about 11144.7796299433. The cubic root of 124206113 is about 498.9392351473.

Adding to 124206113 its reverse (311602421), we get a palindrome (435808534).

The spelling of 124206113 in words is "one hundred twenty-four million, two hundred six thousand, one hundred thirteen".