11320121320 has 32 divisors (see below), whose sum is σ = 26091502920. Its totient is φ = 4417607680.

The previous prime is 11320121291. The next prime is 11320121357. The reversal of 11320121320 is 2312102311.

It can be written as a sum of positive squares in 4 ways, for example, as 9254055204 + 2066066116 = 96198^2 + 45454^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11320121294 and 11320121303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3449617 + ... + 3452896.

Almost surely, 2^11320121320 is an apocalyptic number.

11320121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11320121320 is an abundant number, since it is smaller than the sum of its proper divisors (14771381600).

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

11320121320 is a wasteful number, since it uses less digits than its factorization.

11320121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6902565 (or 6902561 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11320121320 its reverse (2312102311), we get a palindrome (13632223631).

The spelling of 11320121320 in words is "eleven billion, three hundred twenty million, one hundred twenty-one thousand, three hundred twenty".