123012107 has 2 divisors, whose sum is σ = 123012108. Its totient is φ = 123012106.

The previous prime is 123012103. The next prime is 123012143. The reversal of 123012107 is 701210321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123012107 - 2² = 123012103 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is equal to p_7003304 and since 123012107 and 7003304 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123012103) 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, 61506053 + 61506054.

It is an arithmetic number, because the mean of its divisors is an integer number (61506054).

Almost surely, 2^123012107 is an apocalyptic number.

123012107 is a deficient number, since it is larger than the sum of its proper divisors (1).

123012107 is an equidigital number, since it uses as much as digits as its factorization.

123012107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 123012107 is about 11091.0823186919. The cubic root of 123012107 is about 497.3352999756.

Adding to 123012107 its reverse (701210321), we get a palindrome (824222428).

The spelling of 123012107 in words is "one hundred twenty-three million, twelve thousand, one hundred seven".