123123213122 has 32 divisors (see below), whose sum is σ = 227585635200. Its totient is φ = 48647818368.

The previous prime is 123123213119. The next prime is 123123213193. The reversal of 123123213122 is 221312321321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270872 + ... + 565347.

It is an arithmetic number, because the mean of its divisors is an integer number (7112051100).

Almost surely, 2^123123213122 is an apocalyptic number.

123123213122 is a deficient number, since it is larger than the sum of its proper divisors (104462422078).

123123213122 is a wasteful number, since it uses less digits than its factorization.

123123213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837050.

The product of its digits is 864, while the sum is 23.

Adding to 123123213122 its reverse (221312321321), we get a palindrome (344435534443).

The spelling of 123123213122 in words is "one hundred twenty-three billion, one hundred twenty-three million, two hundred thirteen thousand, one hundred twenty-two".