13121222320213 has 16 divisors (see below), whose sum is σ = 15058973416960. Its totient is φ = 11199300537600.

The previous prime is 13121222320183. The next prime is 13121222320231. The reversal of 13121222320213 is 31202322212131.

It is not a de Polignac number, because 13121222320213 - 2³³ = 13112632385621 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 (13121222620213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24157483 + ... + 24694663.

It is an arithmetic number, because the mean of its divisors is an integer number (941185838560).

Almost surely, 2^{13121222320213} is an apocalyptic number.

It is an amenable number.

13121222320213 is a deficient number, since it is larger than the sum of its proper divisors (1937751096747).

13121222320213 is a wasteful number, since it uses less digits than its factorization.

13121222320213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551908.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13121222320213 its reverse (31202322212131), we get a palindrome (44323544532344).

The spelling of 13121222320213 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twenty-two million, three hundred twenty thousand, two hundred thirteen".