323021201030021 has 24 divisors (see below), whose sum is σ = 378548628919944. Its totient is φ = 273789076561920.

The previous prime is 323021201029991. The next prime is 323021201030023. The reversal of 323021201030021 is 120030102120323.

It can be written as a sum of positive squares in 12 ways, for example, as 112356586825921 + 210664614204100 = 10599839^2 + 14514290^2 .

It is not a de Polignac number, because 323021201030021 - 2¹⁸ = 323021200767877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323021201029975 and 323021201030002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323021201030023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1048364180 + ... + 1048672253.

It is an arithmetic number, because the mean of its divisors is an integer number (15772859538331).

Almost surely, 2^{323021201030021} is an apocalyptic number.

It is an amenable number.

323021201030021 is a deficient number, since it is larger than the sum of its proper divisors (55527427889923).

323021201030021 is a wasteful number, since it uses less digits than its factorization.

323021201030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097036521 (or 2097036504 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 323021201030021 its reverse (120030102120323), we get a palindrome (443051303150344).

The spelling of 323021201030021 in words is "three hundred twenty-three trillion, twenty-one billion, two hundred one million, thirty thousand, twenty-one".