124340005205 has 16 divisors (see below), whose sum is σ = 160707663984. Its totient is φ = 91807672320.

The previous prime is 124340005199. The next prime is 124340005211. The reversal of 124340005205 is 502500043421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124340005199) and next prime (124340005211).

It can be written as a sum of positive squares in 8 ways, for example, as 5291544049 + 119048461156 = 72743^2 + 345034^2 .

It is not a de Polignac number, because 124340005205 - 2⁴ = 124340005189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358085 + ... + 613925.

It is an arithmetic number, because the mean of its divisors is an integer number (10044228999).

Almost surely, 2^124340005205 is an apocalyptic number.

It is an amenable number.

124340005205 is a deficient number, since it is larger than the sum of its proper divisors (36367658779).

124340005205 is a wasteful number, since it uses less digits than its factorization.

124340005205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263336.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 124340005205 its reverse (502500043421), we get a palindrome (626840048626).

The spelling of 124340005205 in words is "one hundred twenty-four billion, three hundred forty million, five thousand, two hundred five".