340220554111 has 2 divisors, whose sum is σ = 340220554112. Its totient is φ = 340220554110.

The previous prime is 340220554081. The next prime is 340220554151. The reversal of 340220554111 is 111455022043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340220554111 - 2²¹ = 340218456959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340220554111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340220554151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170110277055 + 170110277056.

It is an arithmetic number, because the mean of its divisors is an integer number (170110277056).

Almost surely, 2^340220554111 is an apocalyptic number.

340220554111 is a deficient number, since it is larger than the sum of its proper divisors (1).

340220554111 is an equidigital number, since it uses as much as digits as its factorization.

340220554111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 340220554111 its reverse (111455022043), we get a palindrome (451675576154).

The spelling of 340220554111 in words is "three hundred forty billion, two hundred twenty million, five hundred fifty-four thousand, one hundred eleven".