13212420313 has 4 divisors (see below), whose sum is σ = 13232409508. Its totient is φ = 13192431120.

The previous prime is 13212420269. The next prime is 13212420341. The reversal of 13212420313 is 31302421231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9194508544 + 4017911769 = 95888^2 + 63387^2 .

It is a cyclic number.

It is not a de Polignac number, because 13212420313 - 2¹⁷ = 13212289241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13212420713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9993606 + ... + 9994927.

It is an arithmetic number, because the mean of its divisors is an integer number (3308102377).

Almost surely, 2^13212420313 is an apocalyptic number.

It is an amenable number.

13212420313 is a deficient number, since it is larger than the sum of its proper divisors (19989195).

13212420313 is an equidigital number, since it uses as much as digits as its factorization.

13212420313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19989194.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13212420313 its reverse (31302421231), we get a palindrome (44514841544).

The spelling of 13212420313 in words is "thirteen billion, two hundred twelve million, four hundred twenty thousand, three hundred thirteen".