2111311301144 has 16 divisors (see below), whose sum is σ = 4130826459120. Its totient is φ = 1009757578720.

The previous prime is 2111311301111. The next prime is 2111311301161. The reversal of 2111311301144 is 4411031131112.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5737258787 + ... + 5737259154.

It is an arithmetic number, because the mean of its divisors is an integer number (258176653695).

Almost surely, 2^{2111311301144} is an apocalyptic number.

It is an amenable number.

2111311301144 is a deficient number, since it is larger than the sum of its proper divisors (2019515157976).

2111311301144 is a wasteful number, since it uses less digits than its factorization.

2111311301144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11474517970 (or 11474517966 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 2111311301144 its reverse (4411031131112), we get a palindrome (6522342432256).

The spelling of 2111311301144 in words is "two trillion, one hundred eleven billion, three hundred eleven million, three hundred one thousand, one hundred forty-four".