124042040413 has 4 divisors (see below), whose sum is σ = 124042745088. Its totient is φ = 124041335740.

The previous prime is 124042040377. The next prime is 124042040443. The reversal of 124042040413 is 314040240421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124042040413 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 (124042040443) 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, 161220 + ... + 523522.

It is an arithmetic number, because the mean of its divisors is an integer number (31010686272).

Almost surely, 2^124042040413 is an apocalyptic number.

It is an amenable number.

124042040413 is a deficient number, since it is larger than the sum of its proper divisors (704675).

124042040413 is an equidigital number, since it uses as much as digits as its factorization.

124042040413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704674.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 124042040413 its reverse (314040240421), we get a palindrome (438082280834).

The spelling of 124042040413 in words is "one hundred twenty-four billion, forty-two million, forty thousand, four hundred thirteen".