124040013503 has 12 divisors (see below), whose sum is σ = 147810750192. Its totient is φ = 103726838880.

The previous prime is 124040013473. The next prime is 124040013521. The reversal of 124040013503 is 305310040421.

It is not a de Polignac number, because 124040013503 - 2⁸ = 124040013247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124040013533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30869075 + ... + 30873092.

It is an arithmetic number, because the mean of its divisors is an integer number (12317562516).

Almost surely, 2^124040013503 is an apocalyptic number.

124040013503 is a deficient number, since it is larger than the sum of its proper divisors (23770736689).

124040013503 is an equidigital number, since it uses as much as digits as its factorization.

124040013503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61742222 (or 61742215 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 124040013503 its reverse (305310040421), we get a palindrome (429350053924).

The spelling of 124040013503 in words is "one hundred twenty-four billion, forty million, thirteen thousand, five hundred three".