2011400043 has 4 divisors (see below), whose sum is σ = 2681866728. Its totient is φ = 1340933360.

The previous prime is 2011400029. The next prime is 2011400047. The reversal of 2011400043 is 3400041102.

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 2011400043 - 2⁹ = 2011399531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011399995 and 2011400031.

It is not an unprimeable number, because it can be changed into a prime (2011400047) 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, 335233338 + ... + 335233343.

It is an arithmetic number, because the mean of its divisors is an integer number (670466682).

Almost surely, 2^2011400043 is an apocalyptic number.

2011400043 is a deficient number, since it is larger than the sum of its proper divisors (670466685).

2011400043 is an equidigital number, since it uses as much as digits as its factorization.

2011400043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670466684.

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

The square root of 2011400043 is about 44848.6347952755. The cubic root of 2011400043 is about 1262.3103749185.

Adding to 2011400043 its reverse (3400041102), we get a palindrome (5411441145).

The spelling of 2011400043 in words is "two billion, eleven million, four hundred thousand, forty-three".