101010101161 has 2 divisors, whose sum is σ = 101010101162. Its totient is φ = 101010101160.

The previous prime is 101010101149. The next prime is 101010101189. The reversal of 101010101161 is 161101010101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82495328400 + 18514772761 = 287220^2 + 136069^2 .

It is a cyclic number.

It is not a de Polignac number, because 101010101161 - 2¹³ = 101010092969 is a prime.

It is not a weakly prime, because it can be changed into another prime (101010101761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505050580 + 50505050581.

It is an arithmetic number, because the mean of its divisors is an integer number (50505050581).

Almost surely, 2^101010101161 is an apocalyptic number.

It is an amenable number.

101010101161 is a deficient number, since it is larger than the sum of its proper divisors (1).

101010101161 is an equidigital number, since it uses as much as digits as its factorization.

101010101161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 101010101161 its reverse (161101010101), we get a palindrome (262111111262).

It can be divided in two parts, 101010101 and 161, that multiplied together give a palindrome (16262626261).

The spelling of 101010101161 in words is "one hundred one billion, ten million, one hundred one thousand, one hundred sixty-one".