232320121 has 6 divisors (see below), whose sum is σ = 255360266. Its totient is φ = 211200000.

The previous prime is 232320097. The next prime is 232320133. The reversal of 232320121 is 121023232.

It can be written as a sum of positive squares in only one way, i.e., 188760121 + 43560000 = 13739^2 + 6600^2 .

It is not a de Polignac number, because 232320121 - 2⁵ = 232320089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232320095 and 232320104.

It is not an unprimeable number, because it can be changed into a prime (232320161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 959880 + ... + 960121.

Almost surely, 2^232320121 is an apocalyptic number.

It is an amenable number.

232320121 is a deficient number, since it is larger than the sum of its proper divisors (23040145).

232320121 is a wasteful number, since it uses less digits than its factorization.

232320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920023 (or 1920012 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 232320121 is about 15242.0510758887. The cubic root of 232320121 is about 614.7458539648.

Adding to 232320121 its reverse (121023232), we get a palindrome (353343353).

The spelling of 232320121 in words is "two hundred thirty-two million, three hundred twenty thousand, one hundred twenty-one".