11310220 has 12 divisors (see below), whose sum is σ = 23751504. Its totient is φ = 4524080.

The previous prime is 11310217. The next prime is 11310223. The reversal of 11310220 is 2201311.

It is an interprime number because it is at equal distance from previous prime (11310217) and next prime (11310223).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11310197 and 11310206.

It is not an unprimeable number, because it can be changed into a prime (11310223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282736 + ... + 282775.

It is an arithmetic number, because the mean of its divisors is an integer number (1979292).

Almost surely, 2^11310220 is an apocalyptic number.

11310220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11310220 is an abundant number, since it is smaller than the sum of its proper divisors (12441284).

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

11310220 is a wasteful number, since it uses less digits than its factorization.

11310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565520 (or 565518 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11310220 is about 3363.0670525578. The cubic root of 11310220 is about 224.4693337610.

Adding to 11310220 its reverse (2201311), we get a palindrome (13511531).

The spelling of 11310220 in words is "eleven million, three hundred ten thousand, two hundred twenty".