123285107 has 4 divisors (see below), whose sum is σ = 134492856. Its totient is φ = 112077360.

The previous prime is 123285103. The next prime is 123285131. The reversal of 123285107 is 701582321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123285107 - 2² = 123285103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123285107.

It is not an unprimeable number, because it can be changed into a prime (123285103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5603858 + ... + 5603879.

It is an arithmetic number, because the mean of its divisors is an integer number (33623214).

Almost surely, 2^123285107 is an apocalyptic number.

123285107 is a deficient number, since it is larger than the sum of its proper divisors (11207749).

123285107 is a wasteful number, since it uses less digits than its factorization.

123285107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11207748.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 123285107 is about 11103.3826827683. The cubic root of 123285107 is about 497.7029391838.

The spelling of 123285107 in words is "one hundred twenty-three million, two hundred eighty-five thousand, one hundred seven".