13121301303 has 48 divisors (see below), whose sum is σ = 21707921664. Its totient is φ = 7559671680.

The previous prime is 13121301293. The next prime is 13121301313. The reversal of 13121301303 is 30310312131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13121301293) and next prime (13121301313).

It is not a de Polignac number, because 13121301303 - 2¹² = 13121297207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121301313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 353475 + ... + 388827.

It is an arithmetic number, because the mean of its divisors is an integer number (452248368).

Almost surely, 2^13121301303 is an apocalyptic number.

13121301303 is a deficient number, since it is larger than the sum of its proper divisors (8586620361).

13121301303 is a wasteful number, since it uses less digits than its factorization.

13121301303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35556 (or 35553 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13121301303 its reverse (30310312131), we get a palindrome (43431613434).

The spelling of 13121301303 in words is "thirteen billion, one hundred twenty-one million, three hundred one thousand, three hundred three".