323131011222121 has 16 divisors (see below), whose sum is σ = 336937182898176. Its totient is φ = 309670162843536.

The previous prime is 323131011222119. The next prime is 323131011222161. The reversal of 323131011222121 is 121222110131323.

It is not a de Polignac number, because 323131011222121 - 2¹ = 323131011222119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323131011222161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306701211 + ... + 307752976.

It is an arithmetic number, because the mean of its divisors is an integer number (21058573931136).

Almost surely, 2^{323131011222121} is an apocalyptic number.

It is an amenable number.

323131011222121 is a deficient number, since it is larger than the sum of its proper divisors (13806171676055).

323131011222121 is a wasteful number, since it uses less digits than its factorization.

323131011222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614454468.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 323131011222121 its reverse (121222110131323), we get a palindrome (444353121353444).

The spelling of 323131011222121 in words is "three hundred twenty-three trillion, one hundred thirty-one billion, eleven million, two hundred twenty-two thousand, one hundred twenty-one".