105940123 has 2 divisors, whose sum is σ = 105940124. Its totient is φ = 105940122.

The previous prime is 105940117. The next prime is 105940127. The reversal of 105940123 is 321049501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105940123 - 2²¹ = 103842971 is a prime.

It is a super-2 number, since 2×105940123² = 22446619322510258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105940127) 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, 52970061 + 52970062.

It is an arithmetic number, because the mean of its divisors is an integer number (52970062).

Almost surely, 2^105940123 is an apocalyptic number.

105940123 is a deficient number, since it is larger than the sum of its proper divisors (1).

105940123 is an equidigital number, since it uses as much as digits as its factorization.

105940123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 105940123 is about 10292.7218460425. The cubic root of 105940123 is about 473.1732206035.

Adding to 105940123 its reverse (321049501), we get a palindrome (426989624).

The spelling of 105940123 in words is "one hundred five million, nine hundred forty thousand, one hundred twenty-three".