1111331021999 has 8 divisors (see below), whose sum is σ = 1276169594880. Its totient is φ = 957127195800.

The previous prime is 1111331021959. The next prime is 1111331022007. The reversal of 1111331021999 is 9991201331111.

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 1111331021999 - 2²⁰ = 1111329973423 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 (1111331021959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2658686447 + ... + 2658686864.

It is an arithmetic number, because the mean of its divisors is an integer number (159521199360).

Almost surely, 2^{1111331021999} is an apocalyptic number.

1111331021999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1111331021999 is a deficient number, since it is larger than the sum of its proper divisors (164838572881).

1111331021999 is a wasteful number, since it uses less digits than its factorization.

1111331021999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317373341.

The product of its (nonzero) digits is 13122, while the sum is 41.

The spelling of 1111331021999 in words is "one trillion, one hundred eleven billion, three hundred thirty-one million, twenty-one thousand, nine hundred ninety-nine".