13021303247 has 2 divisors, whose sum is σ = 13021303248. Its totient is φ = 13021303246.

The previous prime is 13021303219. The next prime is 13021303249. The reversal of 13021303247 is 74230312031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13021303247 is a prime.

Together with 13021303249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13021303249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510651623 + 6510651624.

It is an arithmetic number, because the mean of its divisors is an integer number (6510651624).

Almost surely, 2^13021303247 is an apocalyptic number.

13021303247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021303247 is an equidigital number, since it uses as much as digits as its factorization.

13021303247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 13021303247 its reverse (74230312031), we get a palindrome (87251615278).

The spelling of 13021303247 in words is "thirteen billion, twenty-one million, three hundred three thousand, two hundred forty-seven".