1101111001112 has 64 divisors (see below), whose sum is σ = 2150981585280. Its totient is φ = 528046186752.

The previous prime is 1101111001099. The next prime is 1101111001139. The reversal of 1101111001112 is 2111001111011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1101111001093 and 1101111001102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5603843 + ... + 5797005.

It is an arithmetic number, because the mean of its divisors is an integer number (33609087270).

Almost surely, 2^{1101111001112} is an apocalyptic number.

It is an amenable number.

1101111001112 is a deficient number, since it is larger than the sum of its proper divisors (1049870584168).

1101111001112 is a wasteful number, since it uses less digits than its factorization.

1101111001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193512 (or 193508 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1101111001112 its reverse (2111001111011), we get a palindrome (3212112112123).

The spelling of 1101111001112 in words is "one trillion, one hundred one billion, one hundred eleven million, one thousand, one hundred twelve".