2161120104087 has 16 divisors (see below), whose sum is σ = 3466458312960. Its totient is φ = 1169929680192.

The previous prime is 2161120104067. The next prime is 2161120104103. The reversal of 2161120104087 is 7804010211612.

It is not a de Polignac number, because 2161120104087 - 2¹⁰ = 2161120103063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161120104067) 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, 2708170158 + ... + 2708170955.

It is an arithmetic number, because the mean of its divisors is an integer number (216653644560).

Almost surely, 2^{2161120104087} is an apocalyptic number.

2161120104087 is a deficient number, since it is larger than the sum of its proper divisors (1305338208873).

2161120104087 is a wasteful number, since it uses less digits than its factorization.

2161120104087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416341142.

The product of its (nonzero) digits is 5376, while the sum is 33.

Adding to 2161120104087 its reverse (7804010211612), we get a palindrome (9965130315699).

The spelling of 2161120104087 in words is "two trillion, one hundred sixty-one billion, one hundred twenty million, one hundred four thousand, eighty-seven".