1001113 has 4 divisors (see below), whose sum is σ = 1060020. Its totient is φ = 942208.

The previous prime is 1001107. The next prime is 1001123. The reversal of 1001113 is 3111001.

1001113 = 707² + 708².

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 499849 + 501264 = 707^2 + 708^2 .

It is not a de Polignac number, because 1001113 - 2⁵ = 1001081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001096 and 1001105.

It is not an unprimeable number, because it can be changed into a prime (1001123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29428 + ... + 29461.

It is an arithmetic number, because the mean of its divisors is an integer number (265005).

2^1001113 is an apocalyptic number.

1001113 is the 708-th centered square number.

It is an amenable number.

1001113 is a deficient number, since it is larger than the sum of its proper divisors (58907).

1001113 is an equidigital number, since it uses as much as digits as its factorization.

1001113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58906.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 1001113 is about 1000.5563452400. The cubic root of 1001113 is about 100.0370862444.

Adding to 1001113 its reverse (3111001), we get a palindrome (4112114).

The spelling of 1001113 in words is "one million, one thousand, one hundred thirteen".