11013210321320 has 16 divisors (see below), whose sum is σ = 24779723223060. Its totient is φ = 4405284128512.

The previous prime is 11013210321313. The next prime is 11013210321331. The reversal of 11013210321320 is 2312301231011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11013092685604 + 117635716 = 3318598^2 + 10846^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11013210321292 and 11013210321301.

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 3 ways as a sum of consecutive naturals, for example, 137665128977 + ... + 137665129056.

Almost surely, 2^{11013210321320} is an apocalyptic number.

11013210321320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11013210321320 is an abundant number, since it is smaller than the sum of its proper divisors (13766512901740).

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

11013210321320 is a wasteful number, since it uses less digits than its factorization.

11013210321320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275330258044 (or 275330258040 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11013210321320 its reverse (2312301231011), we get a palindrome (13325511552331).

The spelling of 11013210321320 in words is "eleven trillion, thirteen billion, two hundred ten million, three hundred twenty-one thousand, three hundred twenty".