201432851260721 has 2 divisors, whose sum is σ = 201432851260722. Its totient is φ = 201432851260720.

The previous prime is 201432851260639. The next prime is 201432851260799. The reversal of 201432851260721 is 127062158234102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172389967429696 + 29042883831025 = 13129736^2 + 5389145^2 .

It is a cyclic number.

It is not a de Polignac number, because 201432851260721 - 2²⁶ = 201432784151857 is a prime.

It is not a weakly prime, because it can be changed into another prime (201432851260621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100716425630360 + 100716425630361.

It is an arithmetic number, because the mean of its divisors is an integer number (100716425630361).

Almost surely, 2^{201432851260721} is an apocalyptic number.

It is an amenable number.

201432851260721 is a deficient number, since it is larger than the sum of its proper divisors (1).

201432851260721 is an equidigital number, since it uses as much as digits as its factorization.

201432851260721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 201432851260721 in words is "two hundred one trillion, four hundred thirty-two billion, eight hundred fifty-one million, two hundred sixty thousand, seven hundred twenty-one".