1001017880111 has 4 divisors (see below), whose sum is σ = 1001675148792. Its totient is φ = 1000360611432.

The previous prime is 1001017880081. The next prime is 1001017880123. The reversal of 1001017880111 is 1110887101001.

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 1001017880111 - 2¹⁰ = 1001017879087 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 (1001017880141) 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 3 ways as a sum of consecutive naturals, for example, 328632056 + ... + 328635101.

It is an arithmetic number, because the mean of its divisors is an integer number (250418787198).

Almost surely, 2^{1001017880111} is an apocalyptic number.

1001017880111 is a deficient number, since it is larger than the sum of its proper divisors (657268681).

1001017880111 is an equidigital number, since it uses as much as digits as its factorization.

1001017880111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657268680.

The product of its (nonzero) digits is 448, while the sum is 29.

The spelling of 1001017880111 in words is "one trillion, one billion, seventeen million, eight hundred eighty thousand, one hundred eleven".