123310320122 has 64 divisors (see below), whose sum is σ = 211094028288. Its totient is φ = 53515728000.

The previous prime is 123310320047. The next prime is 123310320127. The reversal of 123310320122 is 221023013321.

It is a junction number, because it is equal to n+sod(n) for n = 123310320094 and 123310320103.

It is not an unprimeable number, because it can be changed into a prime (123310320127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19736003 + ... + 19742249.

It is an arithmetic number, because the mean of its divisors is an integer number (3298344192).

Almost surely, 2^123310320122 is an apocalyptic number.

123310320122 is a deficient number, since it is larger than the sum of its proper divisors (87783708166).

123310320122 is a wasteful number, since it uses less digits than its factorization.

123310320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6675.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123310320122 its reverse (221023013321), we get a palindrome (344333333443).

The spelling of 123310320122 in words is "one hundred twenty-three billion, three hundred ten million, three hundred twenty thousand, one hundred twenty-two".