11321310220 has 24 divisors (see below), whose sum is σ = 25936093008. Its totient is φ = 4116840000.

The previous prime is 11321310173. The next prime is 11321310223. The reversal of 11321310220 is 2201312311.

It is a junction number, because it is equal to n+sod(n) for n = 11321310194 and 11321310203.

It is not an unprimeable number, because it can be changed into a prime (11321310223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25730031 + ... + 25730470.

It is an arithmetic number, because the mean of its divisors is an integer number (1080670542).

Almost surely, 2^11321310220 is an apocalyptic number.

11321310220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321310220 is an abundant number, since it is smaller than the sum of its proper divisors (14614782788).

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

11321310220 is a wasteful number, since it uses less digits than its factorization.

11321310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51460521 (or 51460519 counting only the distinct ones).

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

Adding to 11321310220 its reverse (2201312311), we get a palindrome (13522622531).

The spelling of 11321310220 in words is "eleven billion, three hundred twenty-one million, three hundred ten thousand, two hundred twenty".