13021111111311 has 32 divisors (see below), whose sum is σ = 19428733209600. Its totient is φ = 8618767113600.

The previous prime is 13021111111289. The next prime is 13021111111313. The reversal of 13021111111311 is 11311111112031.

It is a happy number.

13021111111311 is a `hidden beast` number, since 1 + 30 + 211 + 1 + 1 + 111 + 311 = 666.

It is not a de Polignac number, because 13021111111311 - 2³⁰ = 13020037369487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021111111313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819165 + ... + 5168486.

It is an arithmetic number, because the mean of its divisors is an integer number (607147912800).

Almost surely, 2^{13021111111311} is an apocalyptic number.

13021111111311 is a deficient number, since it is larger than the sum of its proper divisors (6407622098289).

13021111111311 is a wasteful number, since it uses less digits than its factorization.

13021111111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988236 (or 5988230 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

Adding to 13021111111311 its reverse (11311111112031), we get a palindrome (24332222223342).

The spelling of 13021111111311 in words is "thirteen trillion, twenty-one billion, one hundred eleven million, one hundred eleven thousand, three hundred eleven".