11230003220 has 12 divisors (see below), whose sum is σ = 23583006804. Its totient is φ = 4492001280.

The previous prime is 11230003159. The next prime is 11230003243. The reversal of 11230003220 is 2230003211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5108818576 + 6121184644 = 71476^2 + 78238^2 .

It is a super-2 number, since 2×11230003220² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11230003195 and 11230003204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280750061 + ... + 280750100.

It is an arithmetic number, because the mean of its divisors is an integer number (1965250567).

Almost surely, 2^11230003220 is an apocalyptic number.

11230003220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11230003220 is an abundant number, since it is smaller than the sum of its proper divisors (12353003584).

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

11230003220 is a wasteful number, since it uses less digits than its factorization.

11230003220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561500170 (or 561500168 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 11230003220 its reverse (2230003211), we get a palindrome (13460006431).

Subtracting from 11230003220 its reverse (2230003211), we obtain a palindrome (9000000009).

The spelling of 11230003220 in words is "eleven billion, two hundred thirty million, three thousand, two hundred twenty".