101201120161 has 2 divisors, whose sum is σ = 101201120162. Its totient is φ = 101201120160.

The previous prime is 101201120159. The next prime is 101201120197. The reversal of 101201120161 is 161021102101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79321089600 + 21880030561 = 281640^2 + 147919^2 .

It is an emirp because it is prime and its reverse (161021102101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101201120161 - 2¹ = 101201120159 is a prime.

Together with 101201120159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (101201120101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600560080 + 50600560081.

It is an arithmetic number, because the mean of its divisors is an integer number (50600560081).

Almost surely, 2^101201120161 is an apocalyptic number.

It is an amenable number.

101201120161 is a deficient number, since it is larger than the sum of its proper divisors (1).

101201120161 is an equidigital number, since it uses as much as digits as its factorization.

101201120161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101201120161 its reverse (161021102101), we get a palindrome (262222222262).

The spelling of 101201120161 in words is "one hundred one billion, two hundred one million, one hundred twenty thousand, one hundred sixty-one".