11107820 has 12 divisors (see below), whose sum is σ = 23326464. Its totient is φ = 4443120.

The previous prime is 11107769. The next prime is 11107847. The reversal of 11107820 is 2870111.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 555391 = 11107820 / (1 + 1 + 1 + 0 + 7 + 8 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 11107792 and 11107801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277676 + ... + 277715.

It is an arithmetic number, because the mean of its divisors is an integer number (1943872).

Almost surely, 2^11107820 is an apocalyptic number.

11107820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11107820 is an abundant number, since it is smaller than the sum of its proper divisors (12218644).

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

11107820 is a wasteful number, since it uses less digits than its factorization.

11107820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555400 (or 555398 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 11107820 is about 3332.8396301052. The cubic root of 11107820 is about 223.1222827362.

Adding to 11107820 its reverse (2870111), we get a palindrome (13977931).

The spelling of 11107820 in words is "eleven million, one hundred seven thousand, eight hundred twenty".