109123123 has 2 divisors, whose sum is σ = 109123124. Its totient is φ = 109123122.

The previous prime is 109123117. The next prime is 109123139. The reversal of 109123123 is 321321901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109123123 - 2¹³ = 109114931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109123094 and 109123103.

It is not a weakly prime, because it can be changed into another prime (109123823) 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, 54561561 + 54561562.

It is an arithmetic number, because the mean of its divisors is an integer number (54561562).

Almost surely, 2^109123123 is an apocalyptic number.

109123123 is a deficient number, since it is larger than the sum of its proper divisors (1).

109123123 is an equidigital number, since it uses as much as digits as its factorization.

109123123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 109123123 is about 10446.2013670042. The cubic root of 109123123 is about 477.8654100160.

The spelling of 109123123 in words is "one hundred nine million, one hundred twenty-three thousand, one hundred twenty-three".