201205723 has 2 divisors, whose sum is σ = 201205724. Its totient is φ = 201205722.

The previous prime is 201205709. The next prime is 201205751. The reversal of 201205723 is 327502102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201205723 - 2⁵ = 201205691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201205694 and 201205703.

It is not a weakly prime, because it can be changed into another prime (201205793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100602861 + 100602862.

It is an arithmetic number, because the mean of its divisors is an integer number (100602862).

Almost surely, 2^201205723 is an apocalyptic number.

201205723 is a deficient number, since it is larger than the sum of its proper divisors (1).

201205723 is an equidigital number, since it uses as much as digits as its factorization.

201205723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 201205723 is about 14184.7003140708. The cubic root of 201205723 is about 585.9763790873.

Adding to 201205723 its reverse (327502102), we get a palindrome (528707825).

The spelling of 201205723 in words is "two hundred one million, two hundred five thousand, seven hundred twenty-three".