11523020 has 12 divisors (see below), whose sum is σ = 24198384. Its totient is φ = 4609200.

The previous prime is 11523013. The next prime is 11523047. The reversal of 11523020 is 2032511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11522986 and 11523004.

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, 288056 + ... + 288095.

It is an arithmetic number, because the mean of its divisors is an integer number (2016532).

Almost surely, 2^11523020 is an apocalyptic number.

11523020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11523020 is an abundant number, since it is smaller than the sum of its proper divisors (12675364).

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

11523020 is a wasteful number, since it uses less digits than its factorization.

11523020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576160 (or 576158 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 11523020 is about 3394.5574085586. The cubic root of 11523020 is about 225.8683808238.

Adding to 11523020 its reverse (2032511), we get a palindrome (13555531).

The spelling of 11523020 in words is "eleven million, five hundred twenty-three thousand, twenty".