13323121220312 has 32 divisors (see below), whose sum is σ = 25063117308000. Its totient is φ = 6639659330304.

The previous prime is 13323121220257. The next prime is 13323121220317. The reversal of 13323121220312 is 21302212132331.

It is a super-2 number, since 2×13323121220312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323121220317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703598 + ... + 5209730.

It is an arithmetic number, because the mean of its divisors is an integer number (783222415875).

Almost surely, 2^{13323121220312} is an apocalyptic number.

It is an amenable number.

13323121220312 is a deficient number, since it is larger than the sum of its proper divisors (11739996087688).

13323121220312 is a wasteful number, since it uses less digits than its factorization.

13323121220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507355 (or 4507351 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 13323121220312 its reverse (21302212132331), we get a palindrome (34625333352643).

The spelling of 13323121220312 in words is "thirteen trillion, three hundred twenty-three billion, one hundred twenty-one million, two hundred twenty thousand, three hundred twelve".