12020918 has 24 divisors (see below), whose sum is σ = 22279152. Its totient is φ = 4737024.

The previous prime is 12020917. The next prime is 12020929. The reversal of 12020918 is 81902021.

It is a junction number, because it is equal to n+sod(n) for n = 12020893 and 12020902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46646 + ... + 46902.

It is an arithmetic number, because the mean of its divisors is an integer number (928298).

Almost surely, 2^12020918 is an apocalyptic number.

12020918 is a deficient number, since it is larger than the sum of its proper divisors (10258234).

12020918 is an equidigital number, since it uses as much as digits as its factorization.

12020918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 12020918 is about 3467.1195537506. The cubic root of 12020918 is about 229.0757998025.

Adding to 12020918 its reverse (81902021), we get a palindrome (93922939).

The spelling of 12020918 in words is "twelve million, twenty thousand, nine hundred eighteen".