1001818200001 has 8 divisors (see below), whose sum is σ = 1061123159304. Its totient is φ = 942554849280.

The previous prime is 1001818199983. The next prime is 1001818200029. The reversal of 1001818200001 is 1000028181001.

It can be written as a sum of positive squares in 4 ways, for example, as 247803844401 + 754014355600 = 497799^2 + 868340^2 .

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 1001818200001 - 2⁷ = 1001818199873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001818200401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10352560 + ... + 10448881.

It is an arithmetic number, because the mean of its divisors is an integer number (132640394913).

Almost surely, 2^{1001818200001} is an apocalyptic number.

It is an amenable number.

1001818200001 is a deficient number, since it is larger than the sum of its proper divisors (59304959303).

1001818200001 is a wasteful number, since it uses less digits than its factorization.

1001818200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20804291.

The product of its (nonzero) digits is 128, while the sum is 22.

The spelling of 1001818200001 in words is "one trillion, one billion, eight hundred eighteen million, two hundred thousand, one".