123440107 has 8 divisors (see below), whose sum is σ = 142860800. Its totient is φ = 104466024.

The previous prime is 123440101. The next prime is 123440113. The reversal of 123440107 is 701044321.

It is an interprime number because it is at equal distance from previous prime (123440101) and next prime (123440113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123440107 - 2³ = 123440099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123440101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111057 + ... + 112162.

It is an arithmetic number, because the mean of its divisors is an integer number (17857600).

Almost surely, 2^123440107 is an apocalyptic number.

123440107 is a deficient number, since it is larger than the sum of its proper divisors (19420693).

123440107 is an equidigital number, since it uses as much as digits as its factorization.

123440107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223305.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 123440107 is about 11110.3603451913. The cubic root of 123440107 is about 497.9114305696.

Adding to 123440107 its reverse (701044321), we get a palindrome (824484428).

The spelling of 123440107 in words is "one hundred twenty-three million, four hundred forty thousand, one hundred seven".