1001134321 has 8 divisors (see below), whose sum is σ = 1102961088. Its totient is φ = 901110000.

The previous prime is 1001134313. The next prime is 1001134391. The reversal of 1001134321 is 1234311001.

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 1001134321 - 2³ = 1001134313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001134295 and 1001134304.

It is not an unprimeable number, because it can be changed into a prime (1001134391) 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, 449445 + ... + 451666.

It is an arithmetic number, because the mean of its divisors is an integer number (137870136).

Almost surely, 2^1001134321 is an apocalyptic number.

1001134321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1001134321 is a deficient number, since it is larger than the sum of its proper divisors (101826767).

1001134321 is a wasteful number, since it uses less digits than its factorization.

1001134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901223.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1001134321 is about 31640.7067082896. The cubic root of 1001134321 is about 1000.3779641251.

Adding to 1001134321 its reverse (1234311001), we get a palindrome (2235445322).

The spelling of 1001134321 in words is "one billion, one million, one hundred thirty-four thousand, three hundred twenty-one".