1001133001 has 8 divisors (see below), whose sum is σ = 1095448608. Its totient is φ = 907368000.

The previous prime is 1001132989. The next prime is 1001133011. The reversal of 1001133001 is 1003311001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001133001 - 2²⁵ = 967578569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001133011) 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, 133840 + ... + 141121.

It is an arithmetic number, because the mean of its divisors is an integer number (136931076).

Almost surely, 2^1001133001 is an apocalyptic number.

1001133001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1001133001 is a deficient number, since it is larger than the sum of its proper divisors (94315607).

1001133001 is a wasteful number, since it uses less digits than its factorization.

1001133001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275303.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1001133001 is about 31640.6858490773. The cubic root of 1001133001 is about 1000.3775244573.

Adding to 1001133001 its reverse (1003311001), we get a palindrome (2004444002).

The spelling of 1001133001 in words is "one billion, one million, one hundred thirty-three thousand, one".