232221313 has 4 divisors (see below), whose sum is σ = 237162240. Its totient is φ = 227280388.

The previous prime is 232221307. The next prime is 232221329. The reversal of 232221313 is 313122232.

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 232221313 - 2⁵ = 232221281 is a prime.

It is a super-3 number, since 3×232221313³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232221383) 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, 2470393 + ... + 2470486.

It is an arithmetic number, because the mean of its divisors is an integer number (59290560).

Almost surely, 2^232221313 is an apocalyptic number.

It is an amenable number.

232221313 is a deficient number, since it is larger than the sum of its proper divisors (4940927).

232221313 is an equidigital number, since it uses as much as digits as its factorization.

232221313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4940926.

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

The square root of 232221313 is about 15238.8094351232. The cubic root of 232221313 is about 614.6586891489.

Adding to 232221313 its reverse (313122232), we get a palindrome (545343545).

The spelling of 232221313 in words is "two hundred thirty-two million, two hundred twenty-one thousand, three hundred thirteen".