12347321042 has 16 divisors (see below), whose sum is σ = 21169693440. Its totient is φ = 5290994688.

The previous prime is 12347321033. The next prime is 12347321069. The reversal of 12347321042 is 24012374321.

It is a junction number, because it is equal to n+sod(n) for n = 12347320996 and 12347321014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55559 + ... + 166677.

It is an arithmetic number, because the mean of its divisors is an integer number (1323105840).

Almost surely, 2^12347321042 is an apocalyptic number.

It is a pronic number, being equal to 111118×111119.

12347321042 is a deficient number, since it is larger than the sum of its proper divisors (8822372398).

12347321042 is a wasteful number, since it uses less digits than its factorization.

12347321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119065.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 12347321042 its reverse (24012374321), we get a palindrome (36359695363).

The spelling of 12347321042 in words is "twelve billion, three hundred forty-seven million, three hundred twenty-one thousand, forty-two".