20310161042217 has 16 divisors (see below), whose sum is σ = 27340869473280. Its totient is φ = 13410399120000.

The previous prime is 20310161042173. The next prime is 20310161042219. The reversal of 20310161042217 is 71224016101302.

It is not a de Polignac number, because 20310161042217 - 2¹⁹ = 20310160517929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20310161042219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77260284 + ... + 77522717.

It is an arithmetic number, because the mean of its divisors is an integer number (1708804342080).

Almost surely, 2^{20310161042217} is an apocalyptic number.

It is an amenable number.

20310161042217 is a deficient number, since it is larger than the sum of its proper divisors (7030708431063).

20310161042217 is a wasteful number, since it uses less digits than its factorization.

20310161042217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154783424.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 20310161042217 its reverse (71224016101302), we get a palindrome (91534177143519).

The spelling of 20310161042217 in words is "twenty trillion, three hundred ten billion, one hundred sixty-one million, forty-two thousand, two hundred seventeen".