11331320331320 has 64 divisors (see below), whose sum is σ = 27817088653440. Its totient is φ = 4119910070400.

The previous prime is 11331320331313. The next prime is 11331320331329. The reversal of 11331320331320 is 2313302313311.

It is a self number, because there is not a number n which added to its sum of digits gives 11331320331320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331320331329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1409135 + ... + 4964705.

It is an arithmetic number, because the mean of its divisors is an integer number (434642010210).

Almost surely, 2^{11331320331320} is an apocalyptic number.

11331320331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331320331320 is an abundant number, since it is smaller than the sum of its proper divisors (16485768322120).

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

11331320331320 is a wasteful number, since it uses less digits than its factorization.

11331320331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562836 (or 3562832 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 11331320331320 its reverse (2313302313311), we get a palindrome (13644622644631).

The spelling of 11331320331320 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty million, three hundred thirty-one thousand, three hundred twenty".