201123230099977 has 2 divisors, whose sum is σ = 201123230099978. Its totient is φ = 201123230099976.

The previous prime is 201123230099933. The next prime is 201123230099993. The reversal of 201123230099977 is 779990032321102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140726877962896 + 60396352137081 = 11862836^2 + 7771509^2 .

It is a cyclic number.

It is not a de Polignac number, because 201123230099977 - 2⁷ = 201123230099849 is a prime.

It is not a weakly prime, because it can be changed into another prime (201123230091977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561615049988 + 100561615049989.

It is an arithmetic number, because the mean of its divisors is an integer number (100561615049989).

Almost surely, 2^{201123230099977} is an apocalyptic number.

It is an amenable number.

201123230099977 is a deficient number, since it is larger than the sum of its proper divisors (1).

201123230099977 is an equidigital number, since it uses as much as digits as its factorization.

201123230099977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The spelling of 201123230099977 in words is "two hundred one trillion, one hundred twenty-three billion, two hundred thirty million, ninety-nine thousand, nine hundred seventy-seven".