2111434043 has 4 divisors (see below), whose sum is σ = 2115734808. Its totient is φ = 2107133280.

The previous prime is 2111434037. The next prime is 2111434049. The reversal of 2111434043 is 3404341112.

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

It is an interprime number because it is at equal distance from previous prime (2111434037) and next prime (2111434049).

It is a cyclic number.

It is not a de Polignac number, because 2111434043 - 2¹⁶ = 2111368507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111434049) 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, 2149646 + ... + 2150627.

It is an arithmetic number, because the mean of its divisors is an integer number (528933702).

Almost surely, 2^2111434043 is an apocalyptic number.

2111434043 is a deficient number, since it is larger than the sum of its proper divisors (4300765).

2111434043 is an equidigital number, since it uses as much as digits as its factorization.

2111434043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300764.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2111434043 is about 45950.3432304918. The cubic root of 2111434043 is about 1282.8991178138.

Adding to 2111434043 its reverse (3404341112), we get a palindrome (5515775155).

The spelling of 2111434043 in words is "two billion, one hundred eleven million, four hundred thirty-four thousand, forty-three".