201159523407281 has 2 divisors, whose sum is σ = 201159523407282. Its totient is φ = 201159523407280.

The previous prime is 201159523407247. The next prime is 201159523407289. The reversal of 201159523407281 is 182704325951102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196536847105600 + 4622676301681 = 14019160^2 + 2150041^2 .

It is a cyclic number.

It is not a de Polignac number, because 201159523407281 - 2²⁶ = 201159456298417 is a prime.

It is a super-2 number, since 2×201159523407281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201159523407289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100579761703640 + 100579761703641.

It is an arithmetic number, because the mean of its divisors is an integer number (100579761703641).

Almost surely, 2^{201159523407281} is an apocalyptic number.

It is an amenable number.

201159523407281 is a deficient number, since it is larger than the sum of its proper divisors (1).

201159523407281 is an equidigital number, since it uses as much as digits as its factorization.

201159523407281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 201159523407281 in words is "two hundred one trillion, one hundred fifty-nine billion, five hundred twenty-three million, four hundred seven thousand, two hundred eighty-one".