13517980203 has 128 divisors (see below), whose sum is σ = 23339008000. Its totient is φ = 6913299456.

The previous prime is 13517980193. The next prime is 13517980207. The reversal of 13517980203 is 30208971531.

It is not a de Polignac number, because 13517980203 - 2¹² = 13517976107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (13517980207) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 106440726 + ... + 106440852.

It is an arithmetic number, because the mean of its divisors is an integer number (182336000).

Almost surely, 2^13517980203 is an apocalyptic number.

13517980203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13517980203 is a deficient number, since it is larger than the sum of its proper divisors (9821027797).

13517980203 is a wasteful number, since it uses less digits than its factorization.

13517980203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 13517980203 in words is "thirteen billion, five hundred seventeen million, nine hundred eighty thousand, two hundred three".