202110001273 has 2 divisors, whose sum is σ = 202110001274. Its totient is φ = 202110001272.

The previous prime is 202110001243. The next prime is 202110001361. The reversal of 202110001273 is 372100011202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156224934009 + 45885067264 = 395253^2 + 214208^2 .

It is a cyclic number.

It is not a de Polignac number, because 202110001273 - 2²¹ = 202107904121 is a prime.

It is a super-2 number, since 2×202110001273² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202110001273.

It is not a weakly prime, because it can be changed into another prime (202110001213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101055000636 + 101055000637.

It is an arithmetic number, because the mean of its divisors is an integer number (101055000637).

Almost surely, 2^202110001273 is an apocalyptic number.

It is an amenable number.

202110001273 is a deficient number, since it is larger than the sum of its proper divisors (1).

202110001273 is an equidigital number, since it uses as much as digits as its factorization.

202110001273 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 202110001273 its reverse (372100011202), we get a palindrome (574210012475).

The spelling of 202110001273 in words is "two hundred two billion, one hundred ten million, one thousand, two hundred seventy-three".