232021121 has 4 divisors (see below), whose sum is σ = 236398932. Its totient is φ = 227643312.

The previous prime is 232021109. The next prime is 232021123. The reversal of 232021121 is 121120232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 209931121 + 22090000 = 14489^2 + 4700^2 .

It is a cyclic number.

It is not a de Polignac number, because 232021121 - 2⁶ = 232021057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232021096 and 232021105.

It is not an unprimeable number, because it can be changed into a prime (232021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188826 + ... + 2188931.

It is an arithmetic number, because the mean of its divisors is an integer number (59099733).

Almost surely, 2^232021121 is an apocalyptic number.

It is an amenable number.

232021121 is a deficient number, since it is larger than the sum of its proper divisors (4377811).

232021121 is an equidigital number, since it uses as much as digits as its factorization.

232021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377810.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 232021121 is about 15232.2395267406. The cubic root of 232021121 is about 614.4820112391.

Adding to 232021121 its reverse (121120232), we get a palindrome (353141353).

It can be divided in two parts, 2320211 and 21, that added together give a palindrome (2320232).

The spelling of 232021121 in words is "two hundred thirty-two million, twenty-one thousand, one hundred twenty-one".