111110100000491 has 4 divisors (see below), whose sum is σ = 117645988235832. Its totient is φ = 104574211765152.

The previous prime is 111110100000443. The next prime is 111110100000511. The reversal of 111110100000491 is 194000001011111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111110100000491 - 2¹⁰ = 111110099999467 is a prime.

It is a super-2 number, since 2×111110100000491² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110100000401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3267944117645 + ... + 3267944117678.

It is an arithmetic number, because the mean of its divisors is an integer number (29411497058958).

Almost surely, 2^{111110100000491} is an apocalyptic number.

111110100000491 is a deficient number, since it is larger than the sum of its proper divisors (6535888235341).

111110100000491 is an equidigital number, since it uses as much as digits as its factorization.

111110100000491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6535888235340.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 111110100000491 in words is "one hundred eleven trillion, one hundred ten billion, one hundred million, four hundred ninety-one", and thus it is an aban number.