340138111 has 2 divisors, whose sum is σ = 340138112. Its totient is φ = 340138110.

The previous prime is 340138103. The next prime is 340138181. The reversal of 340138111 is 111831043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340138111 - 2³ = 340138103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340138181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170069055 + 170069056.

It is an arithmetic number, because the mean of its divisors is an integer number (170069056).

Almost surely, 2^340138111 is an apocalyptic number.

340138111 is a deficient number, since it is larger than the sum of its proper divisors (1).

340138111 is an equidigital number, since it uses as much as digits as its factorization.

340138111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 340138111 is about 18442.8335946513. The cubic root of 340138111 is about 698.0476968143.

Adding to 340138111 its reverse (111831043), we get a palindrome (451969154).

It can be divided in two parts, 34013 and 8111, that added together give a palindrome (42124).

The spelling of 340138111 in words is "three hundred forty million, one hundred thirty-eight thousand, one hundred eleven".