13331043247 has 2 divisors, whose sum is σ = 13331043248. Its totient is φ = 13331043246.

The previous prime is 13331043239. The next prime is 13331043269. The reversal of 13331043247 is 74234013331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13331043247 - 2³ = 13331043239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13331043287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665521623 + 6665521624.

It is an arithmetic number, because the mean of its divisors is an integer number (6665521624).

Almost surely, 2^13331043247 is an apocalyptic number.

13331043247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331043247 is an equidigital number, since it uses as much as digits as its factorization.

13331043247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 13331043247 its reverse (74234013331), we get a palindrome (87565056578).

The spelling of 13331043247 in words is "thirteen billion, three hundred thirty-one million, forty-three thousand, two hundred forty-seven".