1001043113 has 24 divisors (see below), whose sum is σ = 1219138752. Its totient is φ = 805019904.

The previous prime is 1001043097. The next prime is 1001043119. The reversal of 1001043113 is 3113401001.

It is not a de Polignac number, because 1001043113 - 2⁴ = 1001043097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1001043119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 895631 + ... + 896747.

It is an arithmetic number, because the mean of its divisors is an integer number (50797448).

Almost surely, 2^1001043113 is an apocalyptic number.

It is an amenable number.

1001043113 is a deficient number, since it is larger than the sum of its proper divisors (218095639).

1001043113 is a wasteful number, since it uses less digits than its factorization.

1001043113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1001043113 is about 31639.2653675777. The cubic root of 1001043113 is about 1000.3475835050.

Adding to 1001043113 its reverse (3113401001), we get a palindrome (4114444114).

The spelling of 1001043113 in words is "one billion, one million, forty-three thousand, one hundred thirteen".