1111111100011 has 8 divisors (see below), whose sum is σ = 1212130219248. Its totient is φ = 1010093484000.

The previous prime is 1111111099993. The next prime is 1111111100017. The reversal of 1111111100011 is 1100011111111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111111100011 - 2¹⁵ = 1111111067243 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1111111100017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639701 + ... + 2216041.

It is an arithmetic number, because the mean of its divisors is an integer number (151516277406).

Almost surely, 2^{1111111100011} is an apocalyptic number.

1111111100011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1111111100011 is a deficient number, since it is larger than the sum of its proper divisors (101019119237).

1111111100011 is a wasteful number, since it uses less digits than its factorization.

1111111100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751613.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 1111111100011 its reverse (1100011111111), we get a palindrome (2211122211122).

It can be divided in two parts, 111111 and 1100011, that multiplied together give a palindrome (122223322221).

The spelling of 1111111100011 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred thousand, eleven".