234310021 has 8 divisors (see below), whose sum is σ = 256300704. Its totient is φ = 212434320.

The previous prime is 234310019. The next prime is 234310051. The reversal of 234310021 is 120013432.

It is a happy number.

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 234310021 - 2¹ = 234310019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 234309977 and 234310004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234310051) 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, 24451 + ... + 32656.

It is an arithmetic number, because the mean of its divisors is an integer number (32037588).

Almost surely, 2^234310021 is an apocalyptic number.

It is an amenable number.

234310021 is a deficient number, since it is larger than the sum of its proper divisors (21990683).

234310021 is a wasteful number, since it uses less digits than its factorization.

234310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57491.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 234310021 is about 15307.1885400292. The cubic root of 234310021 is about 616.4960348293.

Adding to 234310021 its reverse (120013432), we get a palindrome (354323453).

The spelling of 234310021 in words is "two hundred thirty-four million, three hundred ten thousand, twenty-one".