2103111043 has 24 divisors (see below), whose sum is σ = 2381646960. Its totient is φ = 1854388800.

The previous prime is 2103111013. The next prime is 2103111071. The reversal of 2103111043 is 3401113012.

It is not a de Polignac number, because 2103111043 - 2⁹ = 2103110531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103111013) 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 23 ways as a sum of consecutive naturals, for example, 2063388 + ... + 2064406.

It is an arithmetic number, because the mean of its divisors is an integer number (99235290).

Almost surely, 2^2103111043 is an apocalyptic number.

2103111043 is a deficient number, since it is larger than the sum of its proper divisors (278535917).

2103111043 is a wasteful number, since it uses less digits than its factorization.

2103111043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2103111043 is about 45859.6886491830. The cubic root of 2103111043 is about 1281.2112238973.

Adding to 2103111043 its reverse (3401113012), we get a palindrome (5504224055).

The spelling of 2103111043 in words is "two billion, one hundred three million, one hundred eleven thousand, forty-three".