230400210121 has 2 divisors, whose sum is σ = 230400210122. Its totient is φ = 230400210120.

The previous prime is 230400210119. The next prime is 230400210137. The reversal of 230400210121 is 121012004032.

230400210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (230400210137) can be obtained adding 230400210121 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154006014096 + 76394196025 = 392436^2 + 276395^2 .

It is a cyclic number.

It is not a de Polignac number, because 230400210121 - 2¹ = 230400210119 is a prime.

Together with 230400210119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 230400210095 and 230400210104.

It is not a weakly prime, because it can be changed into another prime (230400210151) 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 as a sum of consecutive naturals, namely, 115200105060 + 115200105061.

It is an arithmetic number, because the mean of its divisors is an integer number (115200105061).

Almost surely, 2^230400210121 is an apocalyptic number.

It is an amenable number.

230400210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

230400210121 is an equidigital number, since it uses as much as digits as its factorization.

230400210121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 230400210121 its reverse (121012004032), we get a palindrome (351412214153).

The spelling of 230400210121 in words is "two hundred thirty billion, four hundred million, two hundred ten thousand, one hundred twenty-one".