10101020161 has 2 divisors, whose sum is σ = 10101020162. Its totient is φ = 10101020160.

The previous prime is 10101020143. The next prime is 10101020207. The reversal of 10101020161 is 16102010101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10019009025 + 82011136 = 100095^2 + 9056^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101020161 - 2²⁹ = 9564149249 is a prime.

It is not a weakly prime, because it can be changed into another prime (10101029161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050510080 + 5050510081.

It is an arithmetic number, because the mean of its divisors is an integer number (5050510081).

Almost surely, 2^10101020161 is an apocalyptic number.

It is an amenable number.

10101020161 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101020161 is an equidigital number, since it uses as much as digits as its factorization.

10101020161 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 13.

Adding to 10101020161 its reverse (16102010101), we get a palindrome (26203030262).

The spelling of 10101020161 in words is "ten billion, one hundred one million, twenty thousand, one hundred sixty-one".