111555101211113 has 16 divisors (see below), whose sum is σ = 130522568400000. Its totient is φ = 93367143825792.

The previous prime is 111555101211109. The next prime is 111555101211149. The reversal of 111555101211113 is 311112101555111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111555101211113 - 2² = 111555101211109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111555101213113) 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, 906345188 + ... + 906468261.

It is an arithmetic number, because the mean of its divisors is an integer number (8157660525000).

Almost surely, 2^{111555101211113} is an apocalyptic number.

It is an amenable number.

111555101211113 is a deficient number, since it is larger than the sum of its proper divisors (18967467188887).

111555101211113 is a wasteful number, since it uses less digits than its factorization.

111555101211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812813664.

The product of its (nonzero) digits is 750, while the sum is 29.

Adding to 111555101211113 its reverse (311112101555111), we get a palindrome (422667202766224).

The spelling of 111555101211113 in words is "one hundred eleven trillion, five hundred fifty-five billion, one hundred one million, two hundred eleven thousand, one hundred thirteen".