201020112269 has 2 divisors, whose sum is σ = 201020112270. Its totient is φ = 201020112268.

The previous prime is 201020112221. The next prime is 201020112289. The reversal of 201020112269 is 962211020102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183386928169 + 17633184100 = 428237^2 + 132790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201020112269 is a prime.

It is a super-2 number, since 2×201020112269² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201020112289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510056134 + 100510056135.

It is an arithmetic number, because the mean of its divisors is an integer number (100510056135).

Almost surely, 2^201020112269 is an apocalyptic number.

It is an amenable number.

201020112269 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020112269 is an equidigital number, since it uses as much as digits as its factorization.

201020112269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 201020112269 in words is "two hundred one billion, twenty million, one hundred twelve thousand, two hundred sixty-nine".