101011021110161 has 2 divisors, whose sum is σ = 101011021110162. Its totient is φ = 101011021110160.

The previous prime is 101011021110143. The next prime is 101011021110173. The reversal of 101011021110161 is 161011120110101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85758434542225 + 15252586567936 = 9260585^2 + 3905456^2 .

It is a cyclic number.

It is not a de Polignac number, because 101011021110161 - 2²² = 101011016915857 is a prime.

It is not a weakly prime, because it can be changed into another prime (101011021110191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505510555080 + 50505510555081.

It is an arithmetic number, because the mean of its divisors is an integer number (50505510555081).

Almost surely, 2^{101011021110161} is an apocalyptic number.

It is an amenable number.

101011021110161 is a deficient number, since it is larger than the sum of its proper divisors (1).

101011021110161 is an equidigital number, since it uses as much as digits as its factorization.

101011021110161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 17.

Adding to 101011021110161 its reverse (161011120110101), we get a palindrome (262022141220262).

The spelling of 101011021110161 in words is "one hundred one trillion, eleven billion, twenty-one million, one hundred ten thousand, one hundred sixty-one".