1001321023002 has 16 divisors (see below), whose sum is σ = 2071698668640. Its totient is φ = 322264237232.

The previous prime is 1001321022959. The next prime is 1001321023009. The reversal of 1001321023002 is 2003201231001.

It is a super-2 number, since 2×1001321023002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001321023009) 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 7 ways as a sum of consecutive naturals, for example, 2877359088 + ... + 2877359435.

It is an arithmetic number, because the mean of its divisors is an integer number (129481166790).

Almost surely, 2^{1001321023002} is an apocalyptic number.

1001321023002 is an abundant number, since it is smaller than the sum of its proper divisors (1070377645638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001321023002 is a wasteful number, since it uses less digits than its factorization.

1001321023002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754718557.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1001321023002 its reverse (2003201231001), we get a palindrome (3004522254003).

The spelling of 1001321023002 in words is "one trillion, one billion, three hundred twenty-one million, twenty-three thousand, two".