202120020021193 has 2 divisors, whose sum is σ = 202120020021194. Its totient is φ = 202120020021192.

The previous prime is 202120020021167. The next prime is 202120020021239. The reversal of 202120020021193 is 391120020021202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201167615789449 + 952404231744 = 14183357^2 + 975912^2 .

It is a cyclic number.

It is not a de Polignac number, because 202120020021193 - 2²⁹ = 202119483150281 is a prime.

It is not a weakly prime, because it can be changed into another prime (202120020021793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060010010596 + 101060010010597.

It is an arithmetic number, because the mean of its divisors is an integer number (101060010010597).

Almost surely, 2^{202120020021193} is an apocalyptic number.

It is an amenable number.

202120020021193 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120020021193 is an equidigital number, since it uses as much as digits as its factorization.

202120020021193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 202120020021193 its reverse (391120020021202), we get a palindrome (593240040042395).

The spelling of 202120020021193 in words is "two hundred two trillion, one hundred twenty billion, twenty million, twenty-one thousand, one hundred ninety-three".