13601221003 has 8 divisors (see below), whose sum is σ = 14518725120. Its totient is φ = 12703881960.

The previous prime is 13601220989. The next prime is 13601221013. The reversal of 13601221003 is 30012210631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13601221003 - 2¹³ = 13601212811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13601221013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5039875 + ... + 5042572.

It is an arithmetic number, because the mean of its divisors is an integer number (1814840640).

Almost surely, 2^13601221003 is an apocalyptic number.

13601221003 is a deficient number, since it is larger than the sum of its proper divisors (917504117).

13601221003 is a wasteful number, since it uses less digits than its factorization.

13601221003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10082537.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13601221003 its reverse (30012210631), we get a palindrome (43613431634).

The spelling of 13601221003 in words is "thirteen billion, six hundred one million, two hundred twenty-one thousand, three".