111000000101011 has 4 divisors (see below), whose sum is σ = 126857142972592. Its totient is φ = 95142857229432.

The previous prime is 111000000101009. The next prime is 111000000101017. The reversal of 111000000101011 is 110101000000111.

It is a happy number.

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 111000000101011 - 2¹ = 111000000101009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 15857142871573 = 111000000101011 / (1 + 1 + 1 + 0 + 0 + 0 + 0 + 0 + 0 + 1 + 0 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111000000100985 and 111000000101003.

It is not an unprimeable number, because it can be changed into a prime (111000000101017) 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, 7928571435780 + ... + 7928571435793.

It is an arithmetic number, because the mean of its divisors is an integer number (31714285743148).

Almost surely, 2^{111000000101011} is an apocalyptic number.

111000000101011 is a deficient number, since it is larger than the sum of its proper divisors (15857142871581).

111000000101011 is an equidigital number, since it uses as much as digits as its factorization.

111000000101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15857142871580.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 111000000101011 its reverse (110101000000111), we get a palindrome (221101000101122).

The spelling of 111000000101011 in words is "one hundred eleven trillion, one hundred one thousand, eleven".