230021200117 has 2 divisors, whose sum is σ = 230021200118. Its totient is φ = 230021200116.

The previous prime is 230021200099. The next prime is 230021200159. The reversal of 230021200117 is 711002120032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184447916676 + 45573283441 = 429474^2 + 213479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230021200117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230021200094 and 230021200103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230021200187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115010600058 + 115010600059.

It is an arithmetic number, because the mean of its divisors is an integer number (115010600059).

Almost surely, 2^230021200117 is an apocalyptic number.

It is an amenable number.

230021200117 is a deficient number, since it is larger than the sum of its proper divisors (1).

230021200117 is an equidigital number, since it uses as much as digits as its factorization.

230021200117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 230021200117 its reverse (711002120032), we get a palindrome (941023320149).

The spelling of 230021200117 in words is "two hundred thirty billion, twenty-one million, two hundred thousand, one hundred seventeen".