321420021010002 has 96 divisors (see below), whose sum is σ = 727157156843520. Its totient is φ = 102415706316000.

The previous prime is 321420021009991. The next prime is 321420021010009. The reversal of 321420021010002 is 200010120024123.

It is a happy number.

321420021010002 is a `hidden beast` number, since 3 + 21 + 420 + 0 + 210 + 10 + 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 (321420021010009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5050010143 + ... + 5050073789.

It is an arithmetic number, because the mean of its divisors is an integer number (7574553717120).

Almost surely, 2^{321420021010002} is an apocalyptic number.

321420021010002 is an abundant number, since it is smaller than the sum of its proper divisors (405737135833518).

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

321420021010002 is a wasteful number, since it uses less digits than its factorization.

321420021010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71348 (or 71345 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 321420021010002 its reverse (200010120024123), we get a palindrome (521430141034125).

The spelling of 321420021010002 in words is "three hundred twenty-one trillion, four hundred twenty billion, twenty-one million, ten thousand, two".