123512304122 has 8 divisors (see below), whose sum is σ = 187350124500. Its totient is φ = 61062262624.

The previous prime is 123512304119. The next prime is 123512304151. The reversal of 123512304122 is 221403215321.

It can be written as a sum of positive squares in 2 ways, for example, as 122184503401 + 1327800721 = 349549^2 + 36439^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 123512304091 and 123512304100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346944497 + ... + 346944852.

Almost surely, 2^123512304122 is an apocalyptic number.

123512304122 is a deficient number, since it is larger than the sum of its proper divisors (63837820378).

123512304122 is an equidigital number, since it uses as much as digits as its factorization.

123512304122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693889440.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 123512304122 its reverse (221403215321), we get a palindrome (344915519443).

The spelling of 123512304122 in words is "one hundred twenty-three billion, five hundred twelve million, three hundred four thousand, one hundred twenty-two".