1001132001321 has 8 divisors (see below), whose sum is σ = 1380871726080. Its totient is φ = 644406805392.

The previous prime is 1001132001271. The next prime is 1001132001347. The reversal of 1001132001321 is 1231002311001.

It is a happy number.

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

It is not a de Polignac number, because 1001132001321 - 2⁹ = 1001132000809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001132001321.

It is not an unprimeable number, because it can be changed into a prime (1001132001371) 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, 5753632105 + ... + 5753632278.

It is an arithmetic number, because the mean of its divisors is an integer number (172608965760).

Almost surely, 2^{1001132001321} is an apocalyptic number.

It is an amenable number.

1001132001321 is a deficient number, since it is larger than the sum of its proper divisors (379739724759).

1001132001321 is a wasteful number, since it uses less digits than its factorization.

1001132001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11507264415.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1001132001321 its reverse (1231002311001), we get a palindrome (2232134312322).

The spelling of 1001132001321 in words is "one trillion, one billion, one hundred thirty-two million, one thousand, three hundred twenty-one".