13111103109911 has 2 divisors, whose sum is σ = 13111103109912. Its totient is φ = 13111103109910.

The previous prime is 13111103109899. The next prime is 13111103110051. The reversal of 13111103109911 is 11990130111131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13111103109911 - 2¹⁴ = 13111103093527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111103105911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555551554955 + 6555551554956.

It is an arithmetic number, because the mean of its divisors is an integer number (6555551554956).

Almost surely, 2^{13111103109911} is an apocalyptic number.

13111103109911 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111103109911 is an equidigital number, since it uses as much as digits as its factorization.

13111103109911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 13111103109911 in words is "thirteen trillion, one hundred eleven billion, one hundred three million, one hundred nine thousand, nine hundred eleven".