1101100231111 has 4 divisors (see below), whose sum is σ = 1115038208800. Its totient is φ = 1087162253424.

The previous prime is 1101100231051. The next prime is 1101100231141. The reversal of 1101100231111 is 1111320011011.

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 1101100231111 - 2¹¹ = 1101100229063 is a prime.

It is a super-2 number, since 2×1101100231111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101100231091 and 1101100231100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101100231141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6968988726 + ... + 6968988883.

It is an arithmetic number, because the mean of its divisors is an integer number (278759552200).

Almost surely, 2^{1101100231111} is an apocalyptic number.

1101100231111 is a deficient number, since it is larger than the sum of its proper divisors (13937977689).

1101100231111 is an equidigital number, since it uses as much as digits as its factorization.

1101100231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13937977688.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 1101100231111 its reverse (1111320011011), we get a palindrome (2212420242122).

The spelling of 1101100231111 in words is "one trillion, one hundred one billion, one hundred million, two hundred thirty-one thousand, one hundred eleven".