2112300404161 has 4 divisors (see below), whose sum is σ = 2204139552192. Its totient is φ = 2020461256132.

The previous prime is 2112300404147. The next prime is 2112300404213. The reversal of 2112300404161 is 1614040032112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2112300404161 - 2¹⁷ = 2112300273089 is a prime.

It is a super-2 number, since 2×2112300404161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112300404131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45919573981 + ... + 45919574026.

It is an arithmetic number, because the mean of its divisors is an integer number (551034888048).

Almost surely, 2^{2112300404161} is an apocalyptic number.

It is an amenable number.

2112300404161 is a deficient number, since it is larger than the sum of its proper divisors (91839148031).

2112300404161 is an equidigital number, since it uses as much as digits as its factorization.

2112300404161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91839148030.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 2112300404161 its reverse (1614040032112), we get a palindrome (3726340436273).

The spelling of 2112300404161 in words is "two trillion, one hundred twelve billion, three hundred million, four hundred four thousand, one hundred sixty-one".