123123330330 has 128 divisors (see below), whose sum is σ = 396749961216. Its totient is φ = 23616057600.

The previous prime is 123123330307. The next prime is 123123330347. The reversal of 123123330330 is 33033321321.

It is a self number, because there is not a number n which added to its sum of digits gives 123123330330.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2019976 + ... + 2080035.

It is an arithmetic number, because the mean of its divisors is an integer number (3099609072).

Almost surely, 2^123123330330 is an apocalyptic number.

123123330330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123123330330 is an abundant number, since it is smaller than the sum of its proper divisors (273626630886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123123330330 is a wasteful number, since it uses less digits than its factorization.

123123330330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100052.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 123123330330 its reverse (33033321321), we get a palindrome (156156651651).

Subtracting from 123123330330 its reverse (33033321321), we obtain a palindrome (90090009009).

The spelling of 123123330330 in words is "one hundred twenty-three billion, one hundred twenty-three million, three hundred thirty thousand, three hundred thirty".