2111344121 has 12 divisors (see below), whose sum is σ = 2244513840. Its totient is φ = 1985670720.

The previous prime is 2111344117. The next prime is 2111344141. The reversal of 2111344121 is 1214431112.

It is not a de Polignac number, because 2111344121 - 2² = 2111344117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111344093 and 2111344102.

It is not an unprimeable number, because it can be changed into a prime (2111344141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 709166 + ... + 712136.

It is an arithmetic number, because the mean of its divisors is an integer number (187042820).

Almost surely, 2^2111344121 is an apocalyptic number.

It is an amenable number.

2111344121 is a deficient number, since it is larger than the sum of its proper divisors (133169719).

2111344121 is a wasteful number, since it uses less digits than its factorization.

2111344121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464 (or 5447 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 2111344121 is about 45949.3647507776. The cubic root of 2111344121 is about 1282.8809054693.

Adding to 2111344121 its reverse (1214431112), we get a palindrome (3325775233).

The spelling of 2111344121 in words is "two billion, one hundred eleven million, three hundred forty-four thousand, one hundred twenty-one".