233213321 has 8 divisors (see below), whose sum is σ = 256885824. Its totient is φ = 209952720.

The previous prime is 233213311. The next prime is 233213347. The reversal of 233213321 is 123312332.

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 233213321 - 2¹⁸ = 232951177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233213293 and 233213302.

It is not an unprimeable number, because it can be changed into a prime (233213311) 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, 101786 + ... + 104051.

It is an arithmetic number, because the mean of its divisors is an integer number (32110728).

Almost surely, 2^233213321 is an apocalyptic number.

It is an amenable number.

233213321 is a deficient number, since it is larger than the sum of its proper divisors (23672503).

233213321 is a wasteful number, since it uses less digits than its factorization.

233213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205951.

The product of its digits is 648, while the sum is 20.

The square root of 233213321 is about 15271.3234855398. The cubic root of 233213321 is about 615.5326832155.

Adding to 233213321 its reverse (123312332), we get a palindrome (356525653).

The spelling of 233213321 in words is "two hundred thirty-three million, two hundred thirteen thousand, three hundred twenty-one".