12144121018 has 8 divisors (see below), whose sum is σ = 18472747680. Its totient is φ = 5986538460.

The previous prime is 12144121001. The next prime is 12144121021. The reversal of 12144121018 is 81012144121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12144120983 and 12144121001.

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, 42760848 + ... + 42761131.

It is an arithmetic number, because the mean of its divisors is an integer number (2309093460).

Almost surely, 2^12144121018 is an apocalyptic number.

12144121018 is a deficient number, since it is larger than the sum of its proper divisors (6328626662).

12144121018 is an equidigital number, since it uses as much as digits as its factorization.

12144121018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85522052.

The product of its (nonzero) digits is 512, while the sum is 25.

Adding to 12144121018 its reverse (81012144121), we get a palindrome (93156265139).

The spelling of 12144121018 in words is "twelve billion, one hundred forty-four million, one hundred twenty-one thousand, eighteen".