202300213121 has 2 divisors, whose sum is σ = 202300213122. Its totient is φ = 202300213120.

The previous prime is 202300213081. The next prime is 202300213127. The reversal of 202300213121 is 121312003202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187455227521 + 14844985600 = 432961^2 + 121840^2 .

It is a cyclic number.

It is not a de Polignac number, because 202300213121 - 2⁶ = 202300213057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202300213121.

It is not a weakly prime, because it can be changed into another prime (202300213127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101150106560 + 101150106561.

It is an arithmetic number, because the mean of its divisors is an integer number (101150106561).

Almost surely, 2^202300213121 is an apocalyptic number.

It is an amenable number.

202300213121 is a deficient number, since it is larger than the sum of its proper divisors (1).

202300213121 is an equidigital number, since it uses as much as digits as its factorization.

202300213121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 202300213121 its reverse (121312003202), we get a palindrome (323612216323).

The spelling of 202300213121 in words is "two hundred two billion, three hundred million, two hundred thirteen thousand, one hundred twenty-one".