1001132001 has 32 divisors (see below), whose sum is σ = 1529136000. Its totient is φ = 647046144.

The previous prime is 1001131991. The next prime is 1001132081. The reversal of 1001132001 is 1002311001.

It is not a de Polignac number, because 1001132001 - 2⁵ = 1001131969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1001132081) 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 31 ways as a sum of consecutive naturals, for example, 111985 + ... + 120593.

It is an arithmetic number, because the mean of its divisors is an integer number (47785500).

Almost surely, 2^1001132001 is an apocalyptic number.

It is an amenable number.

1001132001 is a deficient number, since it is larger than the sum of its proper divisors (528003999).

1001132001 is an equidigital number, since it uses as much as digits as its factorization.

1001132001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8750 (or 8744 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1001132001 is about 31640.6700466346. The cubic root of 1001132001 is about 1000.3771913754.

Adding to 1001132001 its reverse (1002311001), we get a palindrome (2003443002).

The spelling of 1001132001 in words is "one billion, one million, one hundred thirty-two thousand, one".