12123005543202 has 16 divisors (see below), whose sum is σ = 25028140476672. Its totient is φ = 3910646949360.

The previous prime is 12123005543179. The next prime is 12123005543263. The reversal of 12123005543202 is 20234550032121.

It is a self number, because there is not a number n which added to its sum of digits gives 12123005543202.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32588724393 + ... + 32588724764.

It is an arithmetic number, because the mean of its divisors is an integer number (1564258779792).

Almost surely, 2^{12123005543202} is an apocalyptic number.

12123005543202 is an abundant number, since it is smaller than the sum of its proper divisors (12905134933470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123005543202 is a wasteful number, since it uses less digits than its factorization.

12123005543202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65177449193.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 12123005543202 its reverse (20234550032121), we get a palindrome (32357555575323).

The spelling of 12123005543202 in words is "twelve trillion, one hundred twenty-three billion, five million, five hundred forty-three thousand, two hundred two".