13120221303 has 12 divisors (see below), whose sum is σ = 21658778128. Its totient is φ = 7497269280.

The previous prime is 13120221227. The next prime is 13120221311. The reversal of 13120221303 is 30312202131.

It is not a de Polignac number, because 13120221303 - 2¹⁰ = 13120220279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120222303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104128678 + ... + 104128803.

Almost surely, 2^13120221303 is an apocalyptic number.

13120221303 is a deficient number, since it is larger than the sum of its proper divisors (8538556825).

13120221303 is a wasteful number, since it uses less digits than its factorization.

13120221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208257494 (or 208257491 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13120221303 its reverse (30312202131), we get a palindrome (43432423434).

The spelling of 13120221303 in words is "thirteen billion, one hundred twenty million, two hundred twenty-one thousand, three hundred three".