1001011109999 has 8 divisors (see below), whose sum is σ = 1007669296128. Its totient is φ = 994353305400.

The previous prime is 1001011109963. The next prime is 1001011110023. The reversal of 1001011109999 is 9999011101001.

It is a happy number.

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 1001011109999 - 2²⁴ = 1000994332783 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 (1001011106999) 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, 6838394 + ... + 6983240.

It is an arithmetic number, because the mean of its divisors is an integer number (125958662016).

Almost surely, 2^{1001011109999} is an apocalyptic number.

1001011109999 is a deficient number, since it is larger than the sum of its proper divisors (6658186129).

1001011109999 is a wasteful number, since it uses less digits than its factorization.

1001011109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190765.

The product of its (nonzero) digits is 6561, while the sum is 41.

The spelling of 1001011109999 in words is "one trillion, one billion, eleven million, one hundred nine thousand, nine hundred ninety-nine".