12347020243 has 2 divisors, whose sum is σ = 12347020244. Its totient is φ = 12347020242.

The previous prime is 12347020201. The next prime is 12347020267. The reversal of 12347020243 is 34202074321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12347020243 - 2²⁵ = 12313465811 is a prime.

It is not a weakly prime, because it can be changed into another prime (12347020643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6173510121 + 6173510122.

It is an arithmetic number, because the mean of its divisors is an integer number (6173510122).

Almost surely, 2^12347020243 is an apocalyptic number.

12347020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12347020243 is an equidigital number, since it uses as much as digits as its factorization.

12347020243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 12347020243 its reverse (34202074321), we get a palindrome (46549094564).

The spelling of 12347020243 in words is "twelve billion, three hundred forty-seven million, twenty thousand, two hundred forty-three".