234202121 has 4 divisors (see below), whose sum is σ = 236476032. Its totient is φ = 231928212.

The previous prime is 234202109. The next prime is 234202141. The reversal of 234202121 is 121202432.

234202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-234202121 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 234202121.

It is not an unprimeable number, because it can be changed into a prime (234202141) 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, 1136801 + ... + 1137006.

It is an arithmetic number, because the mean of its divisors is an integer number (59119008).

Almost surely, 2^234202121 is an apocalyptic number.

It is an amenable number.

234202121 is a deficient number, since it is larger than the sum of its proper divisors (2273911).

234202121 is a wasteful number, since it uses less digits than its factorization.

234202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273910.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 234202121 is about 15303.6636463299. The cubic root of 234202121 is about 616.4013879517.

Adding to 234202121 its reverse (121202432), we get a palindrome (355404553).

The spelling of 234202121 in words is "two hundred thirty-four million, two hundred two thousand, one hundred twenty-one".