12354012543212 has 24 divisors (see below), whose sum is σ = 22835924170752. Its totient is φ = 5838730606800.

The previous prime is 12354012543209. The next prime is 12354012543287. The reversal of 12354012543212 is 21234521045321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158472964 + ... + 1158483627.

It is an arithmetic number, because the mean of its divisors is an integer number (951496840448).

Almost surely, 2^{12354012543212} is an apocalyptic number.

It is an amenable number.

12354012543212 is a deficient number, since it is larger than the sum of its proper divisors (10481911627540).

12354012543212 is a wasteful number, since it uses less digits than its factorization.

12354012543212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316956669 (or 2316956667 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 12354012543212 its reverse (21234521045321), we get a palindrome (33588533588533).

The spelling of 12354012543212 in words is "twelve trillion, three hundred fifty-four billion, twelve million, five hundred forty-three thousand, two hundred twelve".