1001323135 has 16 divisors (see below), whose sum is σ = 1211524416. Its totient is φ = 794458368.

The previous prime is 1001323111. The next prime is 1001323163. The reversal of 1001323135 is 5313231001.

It is a cyclic number.

It is not a de Polignac number, because 1001323135 - 2⁷ = 1001323007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420067 + ... + 422443.

It is an arithmetic number, because the mean of its divisors is an integer number (75720276).

Almost surely, 2^1001323135 is an apocalyptic number.

1001323135 is a deficient number, since it is larger than the sum of its proper divisors (210201281).

1001323135 is a wasteful number, since it uses less digits than its factorization.

1001323135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1001323135 is about 31643.6902873227. The cubic root of 1001323135 is about 1000.4408506222.

Adding to 1001323135 its reverse (5313231001), we get a palindrome (6314554136).

The spelling of 1001323135 in words is "one billion, one million, three hundred twenty-three thousand, one hundred thirty-five".