13423512421203 has 16 divisors (see below), whose sum is σ = 18019509043200. Its totient is φ = 8888281531200.

The previous prime is 13423512421199. The next prime is 13423512421219. The reversal of 13423512421203 is 30212421532431.

It is a happy number.

It is not a de Polignac number, because 13423512421203 - 2² = 13423512421199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13423512421283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325038 + ... + 5191596.

It is an arithmetic number, because the mean of its divisors is an integer number (1126219315200).

Almost surely, 2^{13423512421203} is an apocalyptic number.

13423512421203 is a deficient number, since it is larger than the sum of its proper divisors (4595996621997).

13423512421203 is a wasteful number, since it uses less digits than its factorization.

13423512421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872802.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 13423512421203 its reverse (30212421532431), we get a palindrome (43635933953634).

The spelling of 13423512421203 in words is "thirteen trillion, four hundred twenty-three billion, five hundred twelve million, four hundred twenty-one thousand, two hundred three".