12331420243 has 2 divisors, whose sum is σ = 12331420244. Its totient is φ = 12331420242.

The previous prime is 12331420183. The next prime is 12331420253. The reversal of 12331420243 is 34202413321.

It is a strong prime.

It is an emirp because it is prime and its reverse (34202413321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12331420243 is a prime.

It is not a weakly prime, because it can be changed into another prime (12331420253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6165710121 + 6165710122.

It is an arithmetic number, because the mean of its divisors is an integer number (6165710122).

Almost surely, 2^12331420243 is an apocalyptic number.

12331420243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12331420243 is an equidigital number, since it uses as much as digits as its factorization.

12331420243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12331420243 its reverse (34202413321), we get a palindrome (46533833564).

The spelling of 12331420243 in words is "twelve billion, three hundred thirty-one million, four hundred twenty thousand, two hundred forty-three".