2103102645 has 64 divisors (see below), whose sum is σ = 3890073600. Its totient is φ = 950400000.

The previous prime is 2103102629. The next prime is 2103102671. The reversal of 2103102645 is 5462013012.

It is not a de Polignac number, because 2103102645 - 2⁴ = 2103102629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5244445 + ... + 5244845.

It is an arithmetic number, because the mean of its divisors is an integer number (60782400).

Almost surely, 2^2103102645 is an apocalyptic number.

It is an amenable number.

2103102645 is a deficient number, since it is larger than the sum of its proper divisors (1786970955).

2103102645 is a wasteful number, since it uses less digits than its factorization.

2103102645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2103102645 is about 45859.5970871965. The cubic root of 2103102645 is about 1281.2095185465.

Adding to 2103102645 its reverse (5462013012), we get a palindrome (7565115657).

The spelling of 2103102645 in words is "two billion, one hundred three million, one hundred two thousand, six hundred forty-five".