2011040043 has 4 divisors (see below), whose sum is σ = 2681386728. Its totient is φ = 1340693360.

The previous prime is 2011040027. The next prime is 2011040051. The reversal of 2011040043 is 3400401102.

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 2011040043 - 2⁴ = 2011040027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011040023) 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, 335173338 + ... + 335173343.

It is an arithmetic number, because the mean of its divisors is an integer number (670346682).

Almost surely, 2^2011040043 is an apocalyptic number.

2011040043 is a deficient number, since it is larger than the sum of its proper divisors (670346685).

2011040043 is an equidigital number, since it uses as much as digits as its factorization.

2011040043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670346684.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2011040043 is about 44844.6211155809. The cubic root of 2011040043 is about 1262.2350610675.

Adding to 2011040043 its reverse (3400401102), we get a palindrome (5411441145).

The spelling of 2011040043 in words is "two billion, eleven million, forty thousand, forty-three".