13215404110243 has 2 divisors, whose sum is σ = 13215404110244. Its totient is φ = 13215404110242.

The previous prime is 13215404110049. The next prime is 13215404110309. The reversal of 13215404110243 is 34201140451231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13215404110243 - 2²⁹ = 13214867239331 is a prime.

It is not a weakly prime, because it can be changed into another prime (13215404110043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6607702055121 + 6607702055122.

It is an arithmetic number, because the mean of its divisors is an integer number (6607702055122).

Almost surely, 2^{13215404110243} is an apocalyptic number.

13215404110243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13215404110243 is an equidigital number, since it uses as much as digits as its factorization.

13215404110243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 13215404110243 its reverse (34201140451231), we get a palindrome (47416544561474).

The spelling of 13215404110243 in words is "thirteen trillion, two hundred fifteen billion, four hundred four million, one hundred ten thousand, two hundred forty-three".