2105814712321 has 8 divisors (see below), whose sum is σ = 2151091736000. Its totient is φ = 2060884639440.

The previous prime is 2105814712283. The next prime is 2105814712367. The reversal of 2105814712321 is 1232174185012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105814712321 - 2³⁵ = 2071454973953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105814712621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86725431 + ... + 86749708.

It is an arithmetic number, because the mean of its divisors is an integer number (268886467000).

Almost surely, 2^{2105814712321} is an apocalyptic number.

It is an amenable number.

2105814712321 is a deficient number, since it is larger than the sum of its proper divisors (45277023679).

2105814712321 is a wasteful number, since it uses less digits than its factorization.

2105814712321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173475399.

The product of its (nonzero) digits is 26880, while the sum is 37.

Adding to 2105814712321 its reverse (1232174185012), we get a palindrome (3337988897333).

The spelling of 2105814712321 in words is "two trillion, one hundred five billion, eight hundred fourteen million, seven hundred twelve thousand, three hundred twenty-one".