2105034521541 has 32 divisors (see below), whose sum is σ = 3357248083968. Its totient is φ = 1147101721920.

The previous prime is 2105034521509. The next prime is 2105034521549. The reversal of 2105034521541 is 1451254305012.

It is not a de Polignac number, because 2105034521541 - 2⁵ = 2105034521509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105034521549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6423586 + ... + 6743331.

It is an arithmetic number, because the mean of its divisors is an integer number (104914002624).

Almost surely, 2^{2105034521541} is an apocalyptic number.

2105034521541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2105034521541 is a deficient number, since it is larger than the sum of its proper divisors (1252213562427).

2105034521541 is a wasteful number, since it uses less digits than its factorization.

2105034521541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13167281.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 2105034521541 its reverse (1451254305012), we get a palindrome (3556288826553).

The spelling of 2105034521541 in words is "two trillion, one hundred five billion, thirty-four million, five hundred twenty-one thousand, five hundred forty-one".