3205312105121 has 4 divisors (see below), whose sum is σ = 3663213834432. Its totient is φ = 2747410375812.

The previous prime is 3205312105091. The next prime is 3205312105157. The reversal of 3205312105121 is 1215012135023.

3205312105121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3205312105121 - 2⁶ = 3205312105057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3205312107121) 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, 228950864645 + ... + 228950864658.

It is an arithmetic number, because the mean of its divisors is an integer number (915803458608).

Almost surely, 2^{3205312105121} is an apocalyptic number.

It is an amenable number.

3205312105121 is a deficient number, since it is larger than the sum of its proper divisors (457901729311).

3205312105121 is an equidigital number, since it uses as much as digits as its factorization.

3205312105121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457901729310.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 3205312105121 in words is "three trillion, two hundred five billion, three hundred twelve million, one hundred five thousand, one hundred twenty-one".