12000144405 has 16 divisors (see below), whose sum is σ = 19327388544. Its totient is φ = 6357691200.

The previous prime is 12000144397. The next prime is 12000144421. The reversal of 12000144405 is 50444100021.

It is a happy number.

It is not a de Polignac number, because 12000144405 - 2³ = 12000144397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2646774 + ... + 2651303.

It is an arithmetic number, because the mean of its divisors is an integer number (1207961784).

Almost surely, 2^12000144405 is an apocalyptic number.

12000144405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12000144405 is a deficient number, since it is larger than the sum of its proper divisors (7327244139).

12000144405 is a wasteful number, since it uses less digits than its factorization.

12000144405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298236.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 12000144405 its reverse (50444100021), we get a palindrome (62444244426).

The spelling of 12000144405 in words is "twelve billion, one hundred forty-four thousand, four hundred five".