321203111200420 has 24 divisors (see below), whose sum is σ = 674662335326784. Its totient is φ = 128455377469536.

The previous prime is 321203111200393. The next prime is 321203111200421. The reversal of 321203111200420 is 24002111302123.

It is a junction number, because it is equal to n+sod(n) for n = 321203111200391 and 321203111200400.

It is not an unprimeable number, because it can be changed into a prime (321203111200421) 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 7 ways as a sum of consecutive naturals, for example, 1616586342 + ... + 1616785021.

It is an arithmetic number, because the mean of its divisors is an integer number (28110930638616).

Almost surely, 2^{321203111200420} is an apocalyptic number.

It is an amenable number.

321203111200420 is an abundant number, since it is smaller than the sum of its proper divisors (353459224126364).

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

321203111200420 is a wasteful number, since it uses less digits than its factorization.

321203111200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233376339 (or 3233376337 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 321203111200420 its reverse (24002111302123), we get a palindrome (345205222502543).

The spelling of 321203111200420 in words is "three hundred twenty-one trillion, two hundred three billion, one hundred eleven million, two hundred thousand, four hundred twenty".