321203100000420 has 72 divisors (see below), whose sum is σ = 1062890258189760. Its totient is φ = 77867418181440.

The previous prime is 321203100000311. The next prime is 321203100000463. The reversal of 321203100000420 is 24000001302123.

321203100000420 is a `hidden beast` number, since 3 + 212 + 0 + 31 + 0 + 0 + 0 + 0 + 0 + 420 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 321203100000393 and 321203100000402.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 81111891960 + ... + 81111895919.

It is an arithmetic number, because the mean of its divisors is an integer number (14762364697080).

Almost surely, 2^{321203100000420} is an apocalyptic number.

321203100000420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321203100000420 is an abundant number, since it is smaller than the sum of its proper divisors (741687158189340).

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

321203100000420 is a wasteful number, since it uses less digits than its factorization.

321203100000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162223787905 (or 162223787900 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 321203100000420 its reverse (24000001302123), we get a palindrome (345203101302543).

The spelling of 321203100000420 in words is "three hundred twenty-one trillion, two hundred three billion, one hundred million, four hundred twenty", and thus it is an aban number.