323120021201 has 4 divisors (see below), whose sum is σ = 323280699504. Its totient is φ = 322959342900.

The previous prime is 323120021197. The next prime is 323120021321. The reversal of 323120021201 is 102120021323.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102120021323 = 125509 ⋅813647.

It is a cyclic number.

It is not a de Polignac number, because 323120021201 - 2² = 323120021197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 323120021201.

It is not an unprimeable number, because it can be changed into a prime (323120021401) 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, 80336135 + ... + 80340156.

It is an arithmetic number, because the mean of its divisors is an integer number (80820174876).

Almost surely, 2^323120021201 is an apocalyptic number.

It is an amenable number.

323120021201 is a deficient number, since it is larger than the sum of its proper divisors (160678303).

323120021201 is a wasteful number, since it uses less digits than its factorization.

323120021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160678302.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 323120021201 its reverse (102120021323), we get a palindrome (425240042524).

The spelling of 323120021201 in words is "three hundred twenty-three billion, one hundred twenty million, twenty-one thousand, two hundred one".