2111387 has 2 divisors, whose sum is σ = 2111388. Its totient is φ = 2111386.

The previous prime is 2111363. The next prime is 2111407. The reversal of 2111387 is 7831112.

It is a happy number.

2111387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111387 - 2¹⁶ = 2045851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2111357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055693 + 1055694.

It is an arithmetic number, because the mean of its divisors is an integer number (1055694).

2^2111387 is an apocalyptic number.

2111387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111387 is an equidigital number, since it uses as much as digits as its factorization.

2111387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 23.

The square root of 2111387 is about 1453.0612512898. The cubic root of 2111387 is about 128.2889590028.

Adding to 2111387 its reverse (7831112), we get a palindrome (9942499).

The spelling of 2111387 in words is "two million, one hundred eleven thousand, three hundred eighty-seven".