1121011110999 has 16 divisors (see below), whose sum is σ = 1788507756000. Its totient is φ = 689852991168.

The previous prime is 1121011110949. The next prime is 1121011111009. The reversal of 1121011110999 is 9990111101211.

It is not a de Polignac number, because 1121011110999 - 2⁸ = 1121011110743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121011110949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596881574 + ... + 1596882275.

It is an arithmetic number, because the mean of its divisors is an integer number (111781734750).

Almost surely, 2^{1121011110999} is an apocalyptic number.

1121011110999 is a deficient number, since it is larger than the sum of its proper divisors (667496645001).

1121011110999 is a wasteful number, since it uses less digits than its factorization.

1121011110999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193763871 (or 3193763865 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 36.

The spelling of 1121011110999 in words is "one trillion, one hundred twenty-one billion, eleven million, one hundred ten thousand, nine hundred ninety-nine".