13240502003 has 4 divisors (see below), whose sum is σ = 14019355080. Its totient is φ = 12461648928.

The previous prime is 13240501999. The next prime is 13240502017. The reversal of 13240502003 is 30020504231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30020504231 = 421 ⋅71307611.

It is a cyclic number.

It is not a de Polignac number, because 13240502003 - 2² = 13240501999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13240502063) 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, 389426513 + ... + 389426546.

It is an arithmetic number, because the mean of its divisors is an integer number (3504838770).

Almost surely, 2^13240502003 is an apocalyptic number.

13240502003 is a deficient number, since it is larger than the sum of its proper divisors (778853077).

13240502003 is an equidigital number, since it uses as much as digits as its factorization.

13240502003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778853076.

The product of its (nonzero) digits is 720, while the sum is 20.

The spelling of 13240502003 in words is "thirteen billion, two hundred forty million, five hundred two thousand, three".