312323232121 has 8 divisors (see below), whose sum is σ = 312501448224. Its totient is φ = 312145070400.

The previous prime is 312323232083. The next prime is 312323232157. The reversal of 312323232121 is 121232323213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312323232121 - 2¹¹ = 312323230073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312323232181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16917946 + ... + 16936396.

It is an arithmetic number, because the mean of its divisors is an integer number (39062681028).

Almost surely, 2^312323232121 is an apocalyptic number.

It is an amenable number.

312323232121 is a deficient number, since it is larger than the sum of its proper divisors (178216103).

312323232121 is a wasteful number, since it uses less digits than its factorization.

312323232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27191.

The product of its digits is 2592, while the sum is 25.

Adding to 312323232121 its reverse (121232323213), we get a palindrome (433555555334).

It can be divided in two parts, 31232323212 and 1, that added together give a palindrome (31232323213).

The spelling of 312323232121 in words is "three hundred twelve billion, three hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty-one".