33531012110161 has 2 divisors, whose sum is σ = 33531012110162. Its totient is φ = 33531012110160.

The previous prime is 33531012110111. The next prime is 33531012110237. The reversal of 33531012110161 is 16101121013533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20192045525136 + 13338966585025 = 4493556^2 + 3652255^2 .

It is a cyclic number.

It is not a de Polignac number, because 33531012110161 - 2¹⁵ = 33531012077393 is a prime.

It is a super-2 number, since 2×33531012110161² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33531012110111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16765506055080 + 16765506055081.

It is an arithmetic number, because the mean of its divisors is an integer number (16765506055081).

Almost surely, 2^{33531012110161} is an apocalyptic number.

It is an amenable number.

33531012110161 is a deficient number, since it is larger than the sum of its proper divisors (1).

33531012110161 is an equidigital number, since it uses as much as digits as its factorization.

33531012110161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

Adding to 33531012110161 its reverse (16101121013533), we get a palindrome (49632133123694).

The spelling of 33531012110161 in words is "thirty-three trillion, five hundred thirty-one billion, twelve million, one hundred ten thousand, one hundred sixty-one".