234205121 has 2 divisors, whose sum is σ = 234205122. Its totient is φ = 234205120.

The previous prime is 234205117. The next prime is 234205157. The reversal of 234205121 is 121502432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228010000 + 6195121 = 15100^2 + 2489^2 .

It is a cyclic number.

It is not a de Polignac number, because 234205121 - 2² = 234205117 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 234205093 and 234205102.

It is not a weakly prime, because it can be changed into another prime (234235121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117102560 + 117102561.

It is an arithmetic number, because the mean of its divisors is an integer number (117102561).

Almost surely, 2^234205121 is an apocalyptic number.

It is an amenable number.

234205121 is a deficient number, since it is larger than the sum of its proper divisors (1).

234205121 is an equidigital number, since it uses as much as digits as its factorization.

234205121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 234205121 is about 15303.7616617615. The cubic root of 234205121 is about 616.4040198611.

Adding to 234205121 its reverse (121502432), we get a palindrome (355707553).

The spelling of 234205121 in words is "two hundred thirty-four million, two hundred five thousand, one hundred twenty-one".