1121012000999 has 4 divisors (see below), whose sum is σ = 1222922182920. Its totient is φ = 1019101819080.

The previous prime is 1121012000909. The next prime is 1121012001017. The reversal of 1121012000999 is 9990002101211.

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 1121012000999 - 2²⁰ = 1121010952423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121012000909) 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, 50955090944 + ... + 50955090965.

It is an arithmetic number, because the mean of its divisors is an integer number (305730545730).

Almost surely, 2^{1121012000999} is an apocalyptic number.

1121012000999 is a deficient number, since it is larger than the sum of its proper divisors (101910181921).

1121012000999 is a wasteful number, since it uses less digits than its factorization.

1121012000999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101910181920.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 1121012000999 in words is "one trillion, one hundred twenty-one billion, twelve million, nine hundred ninety-nine", and thus it is an aban number.