2103405443 has 4 divisors (see below), whose sum is σ = 2103611328. Its totient is φ = 2103199560.

The previous prime is 2103405439. The next prime is 2103405457. The reversal of 2103405443 is 3445043012.

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

It is a cyclic number.

It is not a de Polignac number, because 2103405443 - 2² = 2103405439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103405413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86771 + ... + 108332.

It is an arithmetic number, because the mean of its divisors is an integer number (525902832).

Almost surely, 2^2103405443 is an apocalyptic number.

2103405443 is a deficient number, since it is larger than the sum of its proper divisors (205885).

2103405443 is a wasteful number, since it uses less digits than its factorization.

2103405443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205884.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2103405443 is about 45862.8983275152. The cubic root of 2103405443 is about 1281.2710037469.

Adding to 2103405443 its reverse (3445043012), we get a palindrome (5548448455).

The spelling of 2103405443 in words is "two billion, one hundred three million, four hundred five thousand, four hundred forty-three".