13212121303 has 8 divisors (see below), whose sum is σ = 13285520000. Its totient is φ = 13138911288.

The previous prime is 13212121297. The next prime is 13212121309. The reversal of 13212121303 is 30312121231.

13212121303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13212121297) and next prime (13212121309).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13212121303 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 (13212121309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94438 + ... + 187996.

It is an arithmetic number, because the mean of its divisors is an integer number (1660690000).

Almost surely, 2^13212121303 is an apocalyptic number.

13212121303 is a deficient number, since it is larger than the sum of its proper divisors (73398697).

13212121303 is an equidigital number, since it uses as much as digits as its factorization.

13212121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94341.

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

Adding to 13212121303 its reverse (30312121231), we get a palindrome (43524242534).

The spelling of 13212121303 in words is "thirteen billion, two hundred twelve million, one hundred twenty-one thousand, three hundred three".