11821030 has 16 divisors (see below), whose sum is σ = 22914864. Its totient is φ = 4364640.

The previous prime is 11821027. The next prime is 11821031. The reversal of 11821030 is 3012811.

It is a junction number, because it is equal to n+sod(n) for n = 11820995 and 11821013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821031) 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, 45336 + ... + 45595.

It is an arithmetic number, because the mean of its divisors is an integer number (1432179).

Almost surely, 2^11821030 is an apocalyptic number.

11821030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11821030 is a deficient number, since it is larger than the sum of its proper divisors (11093834).

11821030 is a wasteful number, since it uses less digits than its factorization.

11821030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90951.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 11821030 is about 3438.1724796758. The cubic root of 11821030 is about 227.7989789682.

Adding to 11821030 its reverse (3012811), we get a palindrome (14833841).

The spelling of 11821030 in words is "eleven million, eight hundred twenty-one thousand, thirty".