12347022018 has 16 divisors (see below), whose sum is σ = 24710191776. Its totient is φ = 4112982720.

The previous prime is 12347022013. The next prime is 12347022019. The reversal of 12347022018 is 81022074321.

It is not an unprimeable number, because it can be changed into a prime (12347022013) by changing a digit.

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, 662871 + ... + 681242.

It is an arithmetic number, because the mean of its divisors is an integer number (1544386986).

Almost surely, 2^12347022018 is an apocalyptic number.

12347022018 is an abundant number, since it is smaller than the sum of its proper divisors (12363169758).

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

12347022018 is a wasteful number, since it uses less digits than its factorization.

12347022018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345649.

The product of its (nonzero) digits is 5376, while the sum is 30.

Adding to 12347022018 its reverse (81022074321), we get a palindrome (93369096339).

The spelling of 12347022018 in words is "twelve billion, three hundred forty-seven million, twenty-two thousand, eighteen".