11121202320 has 80 divisors (see below), whose sum is σ = 34639276992. Its totient is φ = 2951585280.

The previous prime is 11121202297. The next prime is 11121202321. The reversal of 11121202320 is 2320212111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×11121202320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11121202320.

It is not an unprimeable number, because it can be changed into a prime (11121202321) 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, 59167 + ... + 160446.

Almost surely, 2^11121202320 is an apocalyptic number.

11121202320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121202320 is an abundant number, since it is smaller than the sum of its proper divisors (23518074672).

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

11121202320 is a wasteful number, since it uses less digits than its factorization.

11121202320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219840 (or 219834 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11121202320 its reverse (2320212111), we get a palindrome (13441414431).

The spelling of 11121202320 in words is "eleven billion, one hundred twenty-one million, two hundred two thousand, three hundred twenty".