232121233 has 4 divisors (see below), whose sum is σ = 244338160. Its totient is φ = 219904308.

The previous prime is 232121231. The next prime is 232121237. The reversal of 232121233 is 332121232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232121233 - 2¹ = 232121231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 12216907 = 232121233 / (2 + 3 + 2 + 1 + 2 + 1 + 2 + 3 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232121233.

It is not an unprimeable number, because it can be changed into a prime (232121231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6108435 + ... + 6108472.

It is an arithmetic number, because the mean of its divisors is an integer number (61084540).

Almost surely, 2^232121233 is an apocalyptic number.

It is an amenable number.

232121233 is a deficient number, since it is larger than the sum of its proper divisors (12216927).

232121233 is a wasteful number, since it uses less digits than its factorization.

232121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216926.

The product of its digits is 432, while the sum is 19.

The square root of 232121233 is about 15235.5253601574. The cubic root of 232121233 is about 614.5703770126.

Adding to 232121233 its reverse (332121232), we get a palindrome (564242465).

Subtracting 232121233 from its reverse (332121232), we obtain a palindrome (99999999).

The spelling of 232121233 in words is "two hundred thirty-two million, one hundred twenty-one thousand, two hundred thirty-three".