2105320042534 has 32 divisors (see below), whose sum is σ = 3316994369280. Its totient is φ = 1000781435808.

The previous prime is 2105320042523. The next prime is 2105320042541. The reversal of 2105320042534 is 4352400235012.

It is a junction number, because it is equal to n+sod(n) for n = 2105320042496 and 2105320042505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9476959 + ... + 9696565.

It is an arithmetic number, because the mean of its divisors is an integer number (103656074040).

Almost surely, 2^{2105320042534} is an apocalyptic number.

2105320042534 is a deficient number, since it is larger than the sum of its proper divisors (1211674326746).

2105320042534 is a wasteful number, since it uses less digits than its factorization.

2105320042534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222172.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 2105320042534 its reverse (4352400235012), we get a palindrome (6457720277546).

The spelling of 2105320042534 in words is "two trillion, one hundred five billion, three hundred twenty million, forty-two thousand, five hundred thirty-four".