2001032023321 has 4 divisors (see below), whose sum is σ = 2033835827044. Its totient is φ = 1968228219600.

The previous prime is 2001032023219. The next prime is 2001032023339. The reversal of 2001032023321 is 1233202301002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 144448644096 + 1856583379225 = 380064^2 + 1362565^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001032023321 - 2⁹ = 2001032022809 is a prime.

It is a super-2 number, since 2×2001032023321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001032023721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16401901770 + ... + 16401901891.

It is an arithmetic number, because the mean of its divisors is an integer number (508458956761).

Almost surely, 2^{2001032023321} is an apocalyptic number.

It is an amenable number.

2001032023321 is a deficient number, since it is larger than the sum of its proper divisors (32803803723).

2001032023321 is an equidigital number, since it uses as much as digits as its factorization.

2001032023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32803803722.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2001032023321 its reverse (1233202301002), we get a palindrome (3234234324323).

The spelling of 2001032023321 in words is "two trillion, one billion, thirty-two million, twenty-three thousand, three hundred twenty-one".