232421313 has 4 divisors (see below), whose sum is σ = 309895088. Its totient is φ = 154947540.

The previous prime is 232421311. The next prime is 232421317. The reversal of 232421313 is 313124232.

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 not a de Polignac number, because 232421313 - 2¹ = 232421311 is a prime.

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 232421313.

It is not an unprimeable number, because it can be changed into a prime (232421311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38736883 + ... + 38736888.

It is an arithmetic number, because the mean of its divisors is an integer number (77473772).

Almost surely, 2^232421313 is an apocalyptic number.

It is an amenable number.

232421313 is a deficient number, since it is larger than the sum of its proper divisors (77473775).

232421313 is an equidigital number, since it uses as much as digits as its factorization.

232421313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77473774.

The product of its digits is 864, while the sum is 21.

The square root of 232421313 is about 15245.3702152490. The cubic root of 232421313 is about 614.8350962460.

Adding to 232421313 its reverse (313124232), we get a palindrome (545545545).

The spelling of 232421313 in words is "two hundred thirty-two million, four hundred twenty-one thousand, three hundred thirteen".