123413018 has 16 divisors (see below), whose sum is σ = 195407520. Its totient is φ = 58295376.

The previous prime is 123412987. The next prime is 123413021. The reversal of 123413018 is 810314321.

It is a junction number, because it is equal to n+sod(n) for n = 123412984 and 123413002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9821 + ... + 18527.

It is an arithmetic number, because the mean of its divisors is an integer number (12212970).

Almost surely, 2^123413018 is an apocalyptic number.

123413018 is a deficient number, since it is larger than the sum of its proper divisors (71994502).

123413018 is a wasteful number, since it uses less digits than its factorization.

123413018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 123413018 is about 11109.1411909292. The cubic root of 123413018 is about 497.8750055917.

Adding to 123413018 its reverse (810314321), we get a palindrome (933727339).

The spelling of 123413018 in words is "one hundred twenty-three million, four hundred thirteen thousand, eighteen".