2105404311 has 8 divisors (see below), whose sum is σ = 2841027840. Its totient is φ = 1386691832.

The previous prime is 2105404271. The next prime is 2105404363. The reversal of 2105404311 is 1134045012.

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 2105404311 - 2⁷ = 2105404183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105404391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4227471 + ... + 4227968.

It is an arithmetic number, because the mean of its divisors is an integer number (355128480).

Almost surely, 2^2105404311 is an apocalyptic number.

2105404311 is a deficient number, since it is larger than the sum of its proper divisors (735623529).

2105404311 is an equidigital number, since it uses as much as digits as its factorization.

2105404311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8455525.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2105404311 is about 45884.6849286339. The cubic root of 2105404311 is about 1281.6767395623.

Adding to 2105404311 its reverse (1134045012), we get a palindrome (3239449323).

The spelling of 2105404311 in words is "two billion, one hundred five million, four hundred four thousand, three hundred eleven".