2011043111423 has 32 divisors (see below), whose sum is σ = 2166577459200. Its totient is φ = 1862403379200.

The previous prime is 2011043111419. The next prime is 2011043111431. The reversal of 2011043111423 is 3241113401102.

It is a cyclic number.

It is not a de Polignac number, because 2011043111423 - 2² = 2011043111419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011043141423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98798015 + ... + 98818367.

It is an arithmetic number, because the mean of its divisors is an integer number (67705545600).

Almost surely, 2^{2011043111423} is an apocalyptic number.

2011043111423 is a deficient number, since it is larger than the sum of its proper divisors (155534347777).

2011043111423 is a wasteful number, since it uses less digits than its factorization.

2011043111423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21383.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 2011043111423 its reverse (3241113401102), we get a palindrome (5252156512525).

The spelling of 2011043111423 in words is "two trillion, eleven billion, forty-three million, one hundred eleven thousand, four hundred twenty-three".