2105321533 has 8 divisors (see below), whose sum is σ = 2439042368. Its totient is φ = 1779840864.

The previous prime is 2105321527. The next prime is 2105321539. The reversal of 2105321533 is 3351235012.

It is an interprime number because it is at equal distance from previous prime (2105321527) and next prime (2105321539).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105321533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105321498 and 2105321507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105321539) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2059491 + ... + 2060512.

It is an arithmetic number, because the mean of its divisors is an integer number (304880296).

Almost surely, 2^2105321533 is an apocalyptic number.

It is an amenable number.

2105321533 is a deficient number, since it is larger than the sum of its proper divisors (333720835).

2105321533 is an equidigital number, since it uses as much as digits as its factorization.

2105321533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120083.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 2105321533 is about 45883.7828976644. The cubic root of 2105321533 is about 1281.6599421508.

Adding to 2105321533 its reverse (3351235012), we get a palindrome (5456556545).

The spelling of 2105321533 in words is "two billion, one hundred five million, three hundred twenty-one thousand, five hundred thirty-three".