2103444445 has 4 divisors (see below), whose sum is σ = 2524133340. Its totient is φ = 1682755552.

The previous prime is 2103444437. The next prime is 2103444479. The reversal of 2103444445 is 5444443012.

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 477903321 + 1625541124 = 21861^2 + 40318^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103444445 - 2³ = 2103444437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210344440 + ... + 210344449.

It is an arithmetic number, because the mean of its divisors is an integer number (631033335).

Almost surely, 2^2103444445 is an apocalyptic number.

It is an amenable number.

2103444445 is a deficient number, since it is larger than the sum of its proper divisors (420688895).

2103444445 is an equidigital number, since it uses as much as digits as its factorization.

2103444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420688894.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 2103444445 is about 45863.3235276294. The cubic root of 2103444445 is about 1281.2789229402.

Adding to 2103444445 its reverse (5444443012), we get a palindrome (7547887457).

The spelling of 2103444445 in words is "two billion, one hundred three million, four hundred forty-four thousand, four hundred forty-five".