13311221303320 has 16 divisors (see below), whose sum is σ = 29950247932560. Its totient is φ = 5324488521312.

The previous prime is 13311221303311. The next prime is 13311221303329. The reversal of 13311221303320 is 2330312211331.

It is an interprime number because it is at equal distance from previous prime (13311221303311) and next prime (13311221303329).

It is a super-2 number, since 2×13311221303320² (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 (13311221303329) 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, 166390266252 + ... + 166390266331.

It is an arithmetic number, because the mean of its divisors is an integer number (1871890495785).

Almost surely, 2^{13311221303320} is an apocalyptic number.

13311221303320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13311221303320 is an abundant number, since it is smaller than the sum of its proper divisors (16639026629240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13311221303320 is a wasteful number, since it uses less digits than its factorization.

13311221303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332780532594 (or 332780532590 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13311221303320 its reverse (2330312211331), we get a palindrome (15641533514651).

The spelling of 13311221303320 in words is "thirteen trillion, three hundred eleven billion, two hundred twenty-one million, three hundred three thousand, three hundred twenty".