2105532111 has 8 divisors (see below), whose sum is σ = 2829481984. Its totient is φ = 1392635160.

The previous prime is 2105532097. The next prime is 2105532137. The reversal of 2105532111 is 1112355012.

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

It is not a de Polignac number, because 2105532111 - 2¹⁸ = 2105269967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105532811) 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, 2762785 + ... + 2763546.

It is an arithmetic number, because the mean of its divisors is an integer number (353685248).

Almost surely, 2^2105532111 is an apocalyptic number.

2105532111 is a deficient number, since it is larger than the sum of its proper divisors (723949873).

2105532111 is a wasteful number, since it uses less digits than its factorization.

2105532111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5526461.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 2105532111 is about 45886.0775290283. The cubic root of 2105532111 is about 1281.7026720277.

Adding to 2105532111 its reverse (1112355012), we get a palindrome (3217887123).

The spelling of 2105532111 in words is "two billion, one hundred five million, five hundred thirty-two thousand, one hundred eleven".