13121213303 has 16 divisors (see below), whose sum is σ = 14471851392. Its totient is φ = 11797140000.

The previous prime is 13121213293. The next prime is 13121213317. The reversal of 13121213303 is 30331212131.

It is a cyclic number.

It is not a de Polignac number, because 13121213303 - 2¹² = 13121209207 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 (13121213323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072700 + ... + 1084862.

It is an arithmetic number, because the mean of its divisors is an integer number (904490712).

Almost surely, 2^13121213303 is an apocalyptic number.

13121213303 is a deficient number, since it is larger than the sum of its proper divisors (1350638089).

13121213303 is a wasteful number, since it uses less digits than its factorization.

13121213303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13246.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13121213303 its reverse (30331212131), we get a palindrome (43452425434).

The spelling of 13121213303 in words is "thirteen billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred three".