12004012355 has 16 divisors (see below), whose sum is σ = 14885468928. Its totient is φ = 9283440000.

The previous prime is 12004012351. The next prime is 12004012457. The reversal of 12004012355 is 55321040021.

It is not a de Polignac number, because 12004012355 - 2² = 12004012351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12004012355.

It is not an unprimeable number, because it can be changed into a prime (12004012351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104705 + ... + 187005.

It is an arithmetic number, because the mean of its divisors is an integer number (930341808).

Almost surely, 2^12004012355 is an apocalyptic number.

12004012355 is a deficient number, since it is larger than the sum of its proper divisors (2881456573).

12004012355 is an equidigital number, since it uses as much as digits as its factorization.

12004012355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83278.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 12004012355 its reverse (55321040021), we get a palindrome (67325052376).

The spelling of 12004012355 in words is "twelve billion, four million, twelve thousand, three hundred fifty-five".