233232121 has 4 divisors (see below), whose sum is σ = 243372672. Its totient is φ = 223091572.

The previous prime is 233232119. The next prime is 233232137. The reversal of 233232121 is 121232332.

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 233232121 - 2¹ = 233232119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233232151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5070241 + ... + 5070286.

It is an arithmetic number, because the mean of its divisors is an integer number (60843168).

Almost surely, 2^233232121 is an apocalyptic number.

It is an amenable number.

233232121 is a deficient number, since it is larger than the sum of its proper divisors (10140551).

233232121 is a wasteful number, since it uses less digits than its factorization.

233232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140550.

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

The square root of 233232121 is about 15271.9390059023. The cubic root of 233232121 is about 615.5492227274.

Adding to 233232121 its reverse (121232332), we get a palindrome (354464453).

It can be divided in two parts, 2332 and 32121, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 233232121 in words is "two hundred thirty-three million, two hundred thirty-two thousand, one hundred twenty-one".