2111343443 has 16 divisors (see below), whose sum is σ = 2480965632. Its totient is φ = 1776720000.

The previous prime is 2111343439. The next prime is 2111343467. The reversal of 2111343443 is 3443431112.

It is a happy number.

It is not a de Polignac number, because 2111343443 - 2² = 2111343439 is a prime.

It is a super-2 number, since 2×2111343443² = 8915542268598188498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111343743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126758 + ... + 142443.

It is an arithmetic number, because the mean of its divisors is an integer number (155060352).

Almost surely, 2^2111343443 is an apocalyptic number.

2111343443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2111343443 is a deficient number, since it is larger than the sum of its proper divisors (369622189).

2111343443 is a wasteful number, since it uses less digits than its factorization.

2111343443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269266.

The product of its digits is 3456, while the sum is 26.

The square root of 2111343443 is about 45949.3573730906. The cubic root of 2111343443 is about 1282.8807681487.

Adding to 2111343443 its reverse (3443431112), we get a palindrome (5554774555).

The spelling of 2111343443 in words is "two billion, one hundred eleven million, three hundred forty-three thousand, four hundred forty-three".