12051018 has 40 divisors (see below), whose sum is σ = 30863712. Its totient is φ = 3442824.

The previous prime is 12050953. The next prime is 12051023. The reversal of 12051018 is 81015021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4180 + ... + 6447.

Almost surely, 2^12051018 is an apocalyptic number.

12051018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12051018 is an abundant number, since it is smaller than the sum of its proper divisors (18812694).

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

12051018 is a wasteful number, since it uses less digits than its factorization.

12051018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648 (or 10639 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 12051018 is about 3471.4576189261. The cubic root of 12051018 is about 229.2668399671.

Adding to 12051018 its reverse (81015021), we get a palindrome (93066039).

The spelling of 12051018 in words is "twelve million, fifty-one thousand, eighteen".