13323421510555 has 16 divisors (see below), whose sum is σ = 17228634736320. Its totient is φ = 9832734557568.

The previous prime is 13323421510549. The next prime is 13323421510573. The reversal of 13323421510555 is 55501512432331.

It is not a de Polignac number, because 13323421510555 - 2¹⁷ = 13323421379483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63433815 + ... + 63643504.

It is an arithmetic number, because the mean of its divisors is an integer number (1076789671020).

Almost surely, 2^{13323421510555} is an apocalyptic number.

13323421510555 is a deficient number, since it is larger than the sum of its proper divisors (3905213225765).

13323421510555 is a wasteful number, since it uses less digits than its factorization.

13323421510555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127078950.

The product of its (nonzero) digits is 270000, while the sum is 40.

Adding to 13323421510555 its reverse (55501512432331), we get a palindrome (68824933942886).

The spelling of 13323421510555 in words is "thirteen trillion, three hundred twenty-three billion, four hundred twenty-one million, five hundred ten thousand, five hundred fifty-five".