320211402144021 has 96 divisors (see below), whose sum is σ = 500718656655360. Its totient is φ = 196681029697152.

The previous prime is 320211402143993. The next prime is 320211402144097. The reversal of 320211402144021 is 120441204112023.

320211402144021 is a `hidden beast` number, since 3 + 2 + 0 + 2 + 1 + 1 + 40 + 214 + 402 + 1 = 666.

It is not a de Polignac number, because 320211402144021 - 2⁵ = 320211402143989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320211402143021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 581253715 + ... + 581804351.

It is an arithmetic number, because the mean of its divisors is an integer number (5215819340160).

Almost surely, 2^{320211402144021} is an apocalyptic number.

It is an amenable number.

320211402144021 is a deficient number, since it is larger than the sum of its proper divisors (180507254511339).

320211402144021 is a wasteful number, since it uses less digits than its factorization.

320211402144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551615 (or 551612 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 320211402144021 its reverse (120441204112023), we get a palindrome (440652606256044).

The spelling of 320211402144021 in words is "three hundred twenty trillion, two hundred eleven billion, four hundred two million, one hundred forty-four thousand, twenty-one".