320105111 has 2 divisors, whose sum is σ = 320105112. Its totient is φ = 320105110.

The previous prime is 320105083. The next prime is 320105119. The reversal of 320105111 is 111501023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320105111 - 2¹⁸ = 319842967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320105119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160052555 + 160052556.

It is an arithmetic number, because the mean of its divisors is an integer number (160052556).

Almost surely, 2^320105111 is an apocalyptic number.

320105111 is a deficient number, since it is larger than the sum of its proper divisors (1).

320105111 is an equidigital number, since it uses as much as digits as its factorization.

320105111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 320105111 is about 17891.4815205449. The cubic root of 320105111 is about 684.0652610064.

Adding to 320105111 its reverse (111501023), we get a palindrome (431606134).

The spelling of 320105111 in words is "three hundred twenty million, one hundred five thousand, one hundred eleven".