13388111513287 has 16 divisors (see below), whose sum is σ = 15583573209600. Its totient is φ = 11263956913440.

The previous prime is 13388111513251. The next prime is 13388111513333. The reversal of 13388111513287 is 78231511188331.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-13388111513287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13388111513087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24247987 + ... + 24793972.

It is an arithmetic number, because the mean of its divisors is an integer number (973973325600).

Almost surely, 2^{13388111513287} is an apocalyptic number.

13388111513287 is a deficient number, since it is larger than the sum of its proper divisors (2195461696313).

13388111513287 is an equidigital number, since it uses as much as digits as its factorization.

13388111513287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49042686.

The product of its digits is 967680, while the sum is 52.

The spelling of 13388111513287 in words is "thirteen trillion, three hundred eighty-eight billion, one hundred eleven million, five hundred thirteen thousand, two hundred eighty-seven".