201105287129 has 2 divisors, whose sum is σ = 201105287130. Its totient is φ = 201105287128.

The previous prime is 201105287093. The next prime is 201105287167. The reversal of 201105287129 is 921782501102.

It is an a-pointer prime, because the next prime (201105287167) can be obtained adding 201105287129 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196823547904 + 4281739225 = 443648^2 + 65435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201105287129 is a prime.

It is a super-2 number, since 2×201105287129² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201105287092 and 201105287101.

It is not a weakly prime, because it can be changed into another prime (201105287189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100552643564 + 100552643565.

It is an arithmetic number, because the mean of its divisors is an integer number (100552643565).

Almost surely, 2^201105287129 is an apocalyptic number.

It is an amenable number.

201105287129 is a deficient number, since it is larger than the sum of its proper divisors (1).

201105287129 is an equidigital number, since it uses as much as digits as its factorization.

201105287129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 201105287129 in words is "two hundred one billion, one hundred five million, two hundred eighty-seven thousand, one hundred twenty-nine".