2103110321 has 4 divisors (see below), whose sum is σ = 2264888052. Its totient is φ = 1941332592.

The previous prime is 2103110297. The next prime is 2103110327. The reversal of 2103110321 is 1230113012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 211295296 + 1891815025 = 14536^2 + 43495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103110321 - 2⁶ = 2103110257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2103110296 and 2103110305.

It is not an unprimeable number, because it can be changed into a prime (2103110327) 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 3 ways as a sum of consecutive naturals, for example, 80888846 + ... + 80888871.

It is an arithmetic number, because the mean of its divisors is an integer number (566222013).

Almost surely, 2^2103110321 is an apocalyptic number.

It is an amenable number.

2103110321 is a deficient number, since it is larger than the sum of its proper divisors (161777731).

2103110321 is a wasteful number, since it uses less digits than its factorization.

2103110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161777730.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2103110321 is about 45859.6807773451. The cubic root of 2103110321 is about 1281.2110772836.

Adding to 2103110321 its reverse (1230113012), we get a palindrome (3333223333).

The spelling of 2103110321 in words is "two billion, one hundred three million, one hundred ten thousand, three hundred twenty-one".