201135851723 has 2 divisors, whose sum is σ = 201135851724. Its totient is φ = 201135851722.

The previous prime is 201135851717. The next prime is 201135851789. The reversal of 201135851723 is 327158531102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201135851723 - 2⁸ = 201135851467 is a prime.

It is a super-3 number, since 3×201135851723³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (201135851123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100567925861 + 100567925862.

It is an arithmetic number, because the mean of its divisors is an integer number (100567925862).

Almost surely, 2^201135851723 is an apocalyptic number.

201135851723 is a deficient number, since it is larger than the sum of its proper divisors (1).

201135851723 is an equidigital number, since it uses as much as digits as its factorization.

201135851723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 201135851723 in words is "two hundred one billion, one hundred thirty-five million, eight hundred fifty-one thousand, seven hundred twenty-three".