321203112010002 has 96 divisors (see below), whose sum is σ = 731661886842432. Its totient is φ = 105592400596224.

The previous prime is 321203112009977. The next prime is 321203112010003. The reversal of 321203112010002 is 200010211302123.

321203112010002 is a `hidden beast` number, since 32 + 120 + 311 + 201 + 0 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (321203112010003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 441586053 + ... + 442312839.

It is an arithmetic number, because the mean of its divisors is an integer number (7621477987942).

Almost surely, 2^{321203112010002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321203112010002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365830943421216).

321203112010002 is an abundant number, since it is smaller than the sum of its proper divisors (410458774832430).

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

321203112010002 is a wasteful number, since it uses less digits than its factorization.

321203112010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739334 (or 739322 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 321203112010002 its reverse (200010211302123), we get a palindrome (521213323312125).

The spelling of 321203112010002 in words is "three hundred twenty-one trillion, two hundred three billion, one hundred twelve million, ten thousand, two".