124421113 has 4 divisors (see below), whose sum is σ = 131740020. Its totient is φ = 117102208.

The previous prime is 124421111. The next prime is 124421119. The reversal of 124421113 is 311124421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311124421 = 83 ⋅3748487.

It can be written as a sum of positive squares in 2 ways, for example, as 55398249 + 69022864 = 7443^2 + 8308^2 .

It is a cyclic number.

It is not a de Polignac number, because 124421113 - 2¹ = 124421111 is a prime.

It is a super-2 number, since 2×124421113² = 30961226720317538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124421111) 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, 3659428 + ... + 3659461.

It is an arithmetic number, because the mean of its divisors is an integer number (32935005).

Almost surely, 2^124421113 is an apocalyptic number.

It is an amenable number.

124421113 is a deficient number, since it is larger than the sum of its proper divisors (7318907).

124421113 is an equidigital number, since it uses as much as digits as its factorization.

124421113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7318906.

The product of its digits is 192, while the sum is 19.

The square root of 124421113 is about 11154.4212310635. The cubic root of 124421113 is about 499.2269560888.

Adding to 124421113 its reverse (311124421), we get a palindrome (435545534).

The spelling of 124421113 in words is "one hundred twenty-four million, four hundred twenty-one thousand, one hundred thirteen".