201322073749 has 2 divisors, whose sum is σ = 201322073750. Its totient is φ = 201322073748.

The previous prime is 201322073653. The next prime is 201322073779. The reversal of 201322073749 is 947370223102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161688431025 + 39633642724 = 402105^2 + 199082^2 .

It is a cyclic number.

It is not a de Polignac number, because 201322073749 - 2²³ = 201313685141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201322073779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100661036874 + 100661036875.

It is an arithmetic number, because the mean of its divisors is an integer number (100661036875).

Almost surely, 2^201322073749 is an apocalyptic number.

It is an amenable number.

201322073749 is a deficient number, since it is larger than the sum of its proper divisors (1).

201322073749 is an equidigital number, since it uses as much as digits as its factorization.

201322073749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 201322073749 in words is "two hundred one billion, three hundred twenty-two million, seventy-three thousand, seven hundred forty-nine".