13103020221 has 8 divisors (see below), whose sum is σ = 17559378144. Its totient is φ = 8691004560.

The previous prime is 13103020169. The next prime is 13103020247. The reversal of 13103020221 is 12202030131.

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

It is not a de Polignac number, because 13103020221 - 2⁷ = 13103020093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13103020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103020291) 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, 11084875 + ... + 11086056.

It is an arithmetic number, because the mean of its divisors is an integer number (2194922268).

Almost surely, 2^13103020221 is an apocalyptic number.

It is an amenable number.

13103020221 is a deficient number, since it is larger than the sum of its proper divisors (4456357923).

13103020221 is a wasteful number, since it uses less digits than its factorization.

13103020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22171131.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13103020221 its reverse (12202030131), we get a palindrome (25305050352).

The spelling of 13103020221 in words is "thirteen billion, one hundred three million, twenty thousand, two hundred twenty-one".