234113021 has 4 divisors (see below), whose sum is σ = 244291872. Its totient is φ = 223934172.

The previous prime is 234113017. The next prime is 234113081. The reversal of 234113021 is 120311432.

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 234113021 - 2² = 234113017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234113081) 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, 5089391 + ... + 5089436.

It is an arithmetic number, because the mean of its divisors is an integer number (61072968).

Almost surely, 2^234113021 is an apocalyptic number.

It is an amenable number.

234113021 is a deficient number, since it is larger than the sum of its proper divisors (10178851).

234113021 is a wasteful number, since it uses less digits than its factorization.

234113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10178850.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 234113021 is about 15300.7523017661. The cubic root of 234113021 is about 616.3232099949.

Adding to 234113021 its reverse (120311432), we get a palindrome (354424453).

The spelling of 234113021 in words is "two hundred thirty-four million, one hundred thirteen thousand, twenty-one".