124424044109 has 4 divisors (see below), whose sum is σ = 124958053116. Its totient is φ = 123890035104.

The previous prime is 124424044099. The next prime is 124424044139. The reversal of 124424044109 is 901440424421.

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 67796702884 + 56627341225 = 260378^2 + 237965^2 .

It is a cyclic number.

It is not a de Polignac number, because 124424044109 - 2³² = 120129076813 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 (124424044139) 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, 267004154 + ... + 267004619.

It is an arithmetic number, because the mean of its divisors is an integer number (31239513279).

Almost surely, 2^124424044109 is an apocalyptic number.

It is an amenable number.

124424044109 is a deficient number, since it is larger than the sum of its proper divisors (534009007).

124424044109 is an equidigital number, since it uses as much as digits as its factorization.

124424044109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534009006.

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 124424044109 in words is "one hundred twenty-four billion, four hundred twenty-four million, forty-four thousand, one hundred nine".