323121100021201 has 4 divisors (see below), whose sum is σ = 323121456488304. Its totient is φ = 323120743554100.

The previous prime is 323121100021193. The next prime is 323121100021261. The reversal of 323121100021201 is 102120001121323.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 323121100021201 - 2³ = 323121100021193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323121100021261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176870395 + ... + 178687936.

It is an arithmetic number, because the mean of its divisors is an integer number (80780364122076).

Almost surely, 2^{323121100021201} is an apocalyptic number.

It is an amenable number.

323121100021201 is a deficient number, since it is larger than the sum of its proper divisors (356467103).

323121100021201 is an equidigital number, since it uses as much as digits as its factorization.

323121100021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356467102.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 323121100021201 its reverse (102120001121323), we get a palindrome (425241101142524).

The spelling of 323121100021201 in words is "three hundred twenty-three trillion, one hundred twenty-one billion, one hundred million, twenty-one thousand, two hundred one".