20331310321002 has 8 divisors (see below), whose sum is σ = 40662620642016. Its totient is φ = 6777103440332.

The previous prime is 20331310321001. The next prime is 20331310321009. The reversal of 20331310321002 is 20012301313302.

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

20331310321002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20331310321002.

It is not an unprimeable number, because it can be changed into a prime (20331310321001) 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, 1694275860078 + ... + 1694275860089.

It is an arithmetic number, because the mean of its divisors is an integer number (5082827580252).

Almost surely, 2^{20331310321002} is an apocalyptic number.

20331310321002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20331310321002 is a wasteful number, since it uses less digits than its factorization.

20331310321002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388551720172.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20331310321002 its reverse (20012301313302), we get a palindrome (40343611634304).

The spelling of 20331310321002 in words is "twenty trillion, three hundred thirty-one billion, three hundred ten million, three hundred twenty-one thousand, two".