323012320121 has 12 divisors (see below), whose sum is σ = 344629192620. Its totient is φ = 302683971840.

The previous prime is 323012320117. The next prime is 323012320199. The reversal of 323012320121 is 121023210323.

It can be written as a sum of positive squares in 6 ways, for example, as 127064444521 + 195947875600 = 356461^2 + 442660^2 .

It is not a de Polignac number, because 323012320121 - 2² = 323012320117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323012320093 and 323012320102.

It is not an unprimeable number, because it can be changed into a prime (323012320021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2374190 + ... + 2506551.

It is an arithmetic number, because the mean of its divisors is an integer number (28719099385).

Almost surely, 2^323012320121 is an apocalyptic number.

It is an amenable number.

323012320121 is a deficient number, since it is larger than the sum of its proper divisors (21616872499).

323012320121 is a wasteful number, since it uses less digits than its factorization.

323012320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881004 (or 4880987 counting only the distinct ones).

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

Adding to 323012320121 its reverse (121023210323), we get a palindrome (444035530444).

The spelling of 323012320121 in words is "three hundred twenty-three billion, twelve million, three hundred twenty thousand, one hundred twenty-one".