2103443011 has 4 divisors (see below), whose sum is σ = 2105317192. Its totient is φ = 2101568832.

The previous prime is 2103442987. The next prime is 2103443033. The reversal of 2103443011 is 1103443012.

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 2103443011 - 2¹³ = 2103434819 is a prime.

It is a super-2 number, since 2×2103443011² = 8848945001049492242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2103443011.

It is not an unprimeable number, because it can be changed into a prime (2103443071) 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, 935406 + ... + 937651.

It is an arithmetic number, because the mean of its divisors is an integer number (526329298).

Almost surely, 2^2103443011 is an apocalyptic number.

2103443011 is a deficient number, since it is larger than the sum of its proper divisors (1874181).

2103443011 is a wasteful number, since it uses less digits than its factorization.

2103443011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874180.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2103443011 is about 45863.3078942198. The cubic root of 2103443011 is about 1281.2786317742.

Adding to 2103443011 its reverse (1103443012), we get a palindrome (3206886023).

Subtracting from 2103443011 its reverse (1103443012), we obtain a palindrome (999999999).

The spelling of 2103443011 in words is "two billion, one hundred three million, four hundred forty-three thousand, eleven".