12345345204 has 24 divisors (see below), whose sum is σ = 28989286368. Its totient is φ = 4088903520.

The previous prime is 12345345191. The next prime is 12345345227. The reversal of 12345345204 is 40254354321.

It is a congruent number.

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, 3274482 + ... + 3278249.

It is an arithmetic number, because the mean of its divisors is an integer number (1207886932).

Almost surely, 2^12345345204 is an apocalyptic number.

It is an amenable number.

12345345204 is an abundant number, since it is smaller than the sum of its proper divisors (16643941164).

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

12345345204 is a wasteful number, since it uses less digits than its factorization.

12345345204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552895 (or 6552893 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 12345345204 its reverse (40254354321), we get a palindrome (52599699525).

The spelling of 12345345204 in words is "twelve billion, three hundred forty-five million, three hundred forty-five thousand, two hundred four".