321420233000020 has 96 divisors (see below), whose sum is σ = 842249177554176. Its totient is φ = 100098100300800.

The previous prime is 321420232999979. The next prime is 321420233000039. The reversal of 321420233000020 is 20000332024123.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 321420232999955 and 321420233000000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86544697 + ... + 90182176.

It is an arithmetic number, because the mean of its divisors is an integer number (8773428932856).

Almost surely, 2^{321420233000020} is an apocalyptic number.

It is an amenable number.

321420233000020 is an abundant number, since it is smaller than the sum of its proper divisors (520828944554156).

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

321420233000020 is a wasteful number, since it uses less digits than its factorization.

321420233000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176728081 (or 176728079 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 321420233000020 its reverse (20000332024123), we get a palindrome (341420565024143).

The spelling of 321420233000020 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred thirty-three million, twenty", and thus it is an aban number.