123230404505 has 8 divisors (see below), whose sum is σ = 159251599752. Its totient is φ = 91000914048.

The previous prime is 123230404499. The next prime is 123230404511. The reversal of 123230404505 is 505404032321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123230404499) and next prime (123230404511).

It can be written as a sum of positive squares in 4 ways, for example, as 4902660361 + 118327744144 = 70019^2 + 343988^2 .

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 123230404505 - 2¹² = 123230400409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947926124 + ... + 947926253.

It is an arithmetic number, because the mean of its divisors is an integer number (19906449969).

Almost surely, 2^123230404505 is an apocalyptic number.

It is an amenable number.

123230404505 is a deficient number, since it is larger than the sum of its proper divisors (36021195247).

123230404505 is a wasteful number, since it uses less digits than its factorization.

123230404505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895852395.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 123230404505 its reverse (505404032321), we get a palindrome (628634436826).

The spelling of 123230404505 in words is "one hundred twenty-three billion, two hundred thirty million, four hundred four thousand, five hundred five".