123406270318 has 8 divisors (see below), whose sum is σ = 185411380248. Its totient is φ = 61602476904.

The previous prime is 123406270301. The next prime is 123406270319. The reversal of 123406270318 is 813072604321.

It is a happy number.

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

It is a super-2 number, since 2×123406270318² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123406270319) 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, 50327596 + ... + 50330047.

It is an arithmetic number, because the mean of its divisors is an integer number (23176422531).

Almost surely, 2^123406270318 is an apocalyptic number.

123406270318 is a deficient number, since it is larger than the sum of its proper divisors (62005109930).

123406270318 is a wasteful number, since it uses less digits than its factorization.

123406270318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100658258.

The product of its (nonzero) digits is 48384, while the sum is 37.

Adding to 123406270318 its reverse (813072604321), we get a palindrome (936478874639).

The spelling of 123406270318 in words is "one hundred twenty-three billion, four hundred six million, two hundred seventy thousand, three hundred eighteen".