2002312321021 has 8 divisors (see below), whose sum is σ = 2072918545920. Its totient is φ = 1931810161008.

The previous prime is 2002312321003. The next prime is 2002312321033. The reversal of 2002312321021 is 1201232132002.

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

It is a cyclic number.

It is not a de Polignac number, because 2002312321021 - 2¹¹ = 2002312318973 is a prime.

It is a super-3 number, since 3×2002312321021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2002312321021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002312321721) 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, 25977061 + ... + 26054026.

It is an arithmetic number, because the mean of its divisors is an integer number (259114818240).

Almost surely, 2^{2002312321021} is an apocalyptic number.

It is an amenable number.

2002312321021 is a deficient number, since it is larger than the sum of its proper divisors (70606224899).

2002312321021 is a wasteful number, since it uses less digits than its factorization.

2002312321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52032443.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2002312321021 its reverse (1201232132002), we get a palindrome (3203544453023).

It can be divided in two parts, 200231 and 2321021, that added together give a palindrome (2521252).

The spelling of 2002312321021 in words is "two trillion, two billion, three hundred twelve million, three hundred twenty-one thousand, twenty-one".