112021019161 has 2 divisors, whose sum is σ = 112021019162. Its totient is φ = 112021019160.

The previous prime is 112021019137. The next prime is 112021019177. The reversal of 112021019161 is 161910120211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58310175625 + 53710843536 = 241475^2 + 231756^2 .

It is a cyclic number.

It is not a de Polignac number, because 112021019161 - 2⁵ = 112021019129 is a prime.

It is not a weakly prime, because it can be changed into another prime (112051019161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56010509580 + 56010509581.

It is an arithmetic number, because the mean of its divisors is an integer number (56010509581).

Almost surely, 2^112021019161 is an apocalyptic number.

It is an amenable number.

112021019161 is a deficient number, since it is larger than the sum of its proper divisors (1).

112021019161 is an equidigital number, since it uses as much as digits as its factorization.

112021019161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 25.

Adding to 112021019161 its reverse (161910120211), we get a palindrome (273931139372).

The spelling of 112021019161 in words is "one hundred twelve billion, twenty-one million, nineteen thousand, one hundred sixty-one".