201201421273 has 2 divisors, whose sum is σ = 201201421274. Its totient is φ = 201201421272.

The previous prime is 201201421259. The next prime is 201201421307. The reversal of 201201421273 is 372124102102.

201201421273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193202444304 + 7998976969 = 439548^2 + 89437^2 .

It is a cyclic number.

It is not a de Polignac number, because 201201421273 - 2²¹ = 201199324121 is a prime.

It is not a weakly prime, because it can be changed into another prime (201201428273) 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, 100600710636 + 100600710637.

It is an arithmetic number, because the mean of its divisors is an integer number (100600710637).

Almost surely, 2^201201421273 is an apocalyptic number.

It is an amenable number.

201201421273 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201421273 is an equidigital number, since it uses as much as digits as its factorization.

201201421273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 201201421273 its reverse (372124102102), we get a palindrome (573325523375).

The spelling of 201201421273 in words is "two hundred one billion, two hundred one million, four hundred twenty-one thousand, two hundred seventy-three".