12120342302231 has 16 divisors (see below), whose sum is σ = 12889043266560. Its totient is φ = 11364799024800.

The previous prime is 12120342302179. The next prime is 12120342302239. The reversal of 12120342302231 is 13220324302121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120342302231 is a prime.

It is a super-2 number, since 2×12120342302231² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12120342302231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120342302239) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4446290 + ... + 6634016.

It is an arithmetic number, because the mean of its divisors is an integer number (805565204160).

Almost surely, 2^{12120342302231} is an apocalyptic number.

12120342302231 is a deficient number, since it is larger than the sum of its proper divisors (768700964329).

12120342302231 is a wasteful number, since it uses less digits than its factorization.

12120342302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190734.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12120342302231 its reverse (13220324302121), we get a palindrome (25340666604352).

The spelling of 12120342302231 in words is "twelve trillion, one hundred twenty billion, three hundred forty-two million, three hundred two thousand, two hundred thirty-one".