124235244013 has 4 divisors (see below), whose sum is σ = 124444747548. Its totient is φ = 124025740480.

The previous prime is 124235244011. The next prime is 124235244019. The reversal of 124235244013 is 310442532421.

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 24340056169 + 99895187844 = 156013^2 + 316062^2 .

It is a cyclic number.

It is not a de Polignac number, because 124235244013 - 2¹ = 124235244011 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 (124235244011) 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, 104750878 + ... + 104752063.

It is an arithmetic number, because the mean of its divisors is an integer number (31111186887).

Almost surely, 2^124235244013 is an apocalyptic number.

It is an amenable number.

124235244013 is a deficient number, since it is larger than the sum of its proper divisors (209503535).

124235244013 is an equidigital number, since it uses as much as digits as its factorization.

124235244013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209503534.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 124235244013 its reverse (310442532421), we get a palindrome (434677776434).

The spelling of 124235244013 in words is "one hundred twenty-four billion, two hundred thirty-five million, two hundred forty-four thousand, thirteen".