12020235554 has 16 divisors (see below), whose sum is σ = 18927440640. Its totient is φ = 5717660880.

The previous prime is 12020235527. The next prime is 12020235581. The reversal of 12020235554 is 45553202021.

12020235554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12020235527) and next prime (12020235581).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639349 + ... + 1646664.

It is an arithmetic number, because the mean of its divisors is an integer number (1182965040).

Almost surely, 2^12020235554 is an apocalyptic number.

12020235554 is a deficient number, since it is larger than the sum of its proper divisors (6907205086).

12020235554 is a wasteful number, since it uses less digits than its factorization.

12020235554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286105.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 12020235554 its reverse (45553202021), we get a palindrome (57573437575).

The spelling of 12020235554 in words is "twelve billion, twenty million, two hundred thirty-five thousand, five hundred fifty-four".