2105010321 has 16 divisors (see below), whose sum is σ = 2819215488. Its totient is φ = 1397088000.

The previous prime is 2105010293. The next prime is 2105010337. The reversal of 2105010321 is 1230105012.

It is not a de Polignac number, because 2105010321 - 2²² = 2100816017 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2105010321.

It is not an unprimeable number, because it can be changed into a prime (2105010371) 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 15 ways as a sum of consecutive naturals, for example, 750121 + ... + 752921.

It is an arithmetic number, because the mean of its divisors is an integer number (176200968).

Almost surely, 2^2105010321 is an apocalyptic number.

It is an amenable number.

2105010321 is a deficient number, since it is larger than the sum of its proper divisors (714205167).

2105010321 is a wasteful number, since it uses less digits than its factorization.

2105010321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2105010321 is about 45880.3914652000. The cubic root of 2105010321 is about 1281.5967866972.

Adding to 2105010321 its reverse (1230105012), we get a palindrome (3335115333).

The spelling of 2105010321 in words is "two billion, one hundred five million, ten thousand, three hundred twenty-one".