2105421334 has 8 divisors (see below), whose sum is σ = 3295442160. Its totient is φ = 1006940616.

The previous prime is 2105421281. The next prime is 2105421347. The reversal of 2105421334 is 4331245012.

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

It is a junction number, because it is equal to n+sod(n) for n = 2105421299 and 2105421308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22884969 + ... + 22885060.

It is an arithmetic number, because the mean of its divisors is an integer number (411930270).

Almost surely, 2^2105421334 is an apocalyptic number.

2105421334 is a deficient number, since it is larger than the sum of its proper divisors (1190020826).

2105421334 is a wasteful number, since it uses less digits than its factorization.

2105421334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45770054.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2105421334 is about 45884.8704258822. The cubic root of 2105421334 is about 1281.6801938354.

Adding to 2105421334 its reverse (4331245012), we get a palindrome (6436666346).

The spelling of 2105421334 in words is "two billion, one hundred five million, four hundred twenty-one thousand, three hundred thirty-four".