11313232220 has 48 divisors (see below), whose sum is σ = 24035332608. Its totient is φ = 4472555520.

The previous prime is 11313232219. The next prime is 11313232223. The reversal of 11313232220 is 2223231311.

It is a super-2 number, since 2×11313232220² (a number of 21 digits) contains 22 as substring.

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 = 11313232192 and 11313232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313232223) 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, 1589189 + ... + 1596291.

It is an arithmetic number, because the mean of its divisors is an integer number (500736096).

Almost surely, 2^11313232220 is an apocalyptic number.

11313232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11313232220 is an abundant number, since it is smaller than the sum of its proper divisors (12722100388).

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

11313232220 is a wasteful number, since it uses less digits than its factorization.

11313232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030 (or 8028 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11313232220 its reverse (2223231311), we get a palindrome (13536463531).

Subtracting from 11313232220 its reverse (2223231311), we obtain a palindrome (9090000909).

The spelling of 11313232220 in words is "eleven billion, three hundred thirteen million, two hundred thirty-two thousand, two hundred twenty".