12001010018 has 4 divisors (see below), whose sum is σ = 18001515030. Its totient is φ = 6000505008.

The previous prime is 12001009963. The next prime is 12001010029. The reversal of 12001010018 is 81001010021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81001010021 = 73 ⋅1109602877.

It can be written as a sum of positive squares in only one way, i.e., 11982148369 + 18861649 = 109463^2 + 4343^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12001009984 and 12001010011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3000252503 + ... + 3000252506.

Almost surely, 2^12001010018 is an apocalyptic number.

12001010018 is a deficient number, since it is larger than the sum of its proper divisors (6000505012).

12001010018 is an equidigital number, since it uses as much as digits as its factorization.

12001010018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000505011.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12001010018 its reverse (81001010021), we get a palindrome (93002020039).

The spelling of 12001010018 in words is "twelve billion, one million, ten thousand, eighteen".