123220100133330 has 128 divisors (see below), whose sum is σ = 316460574155520. Its totient is φ = 30612727664640.

The previous prime is 123220100133283. The next prime is 123220100133353. The reversal of 123220100133330 is 33331001022321.

It is a self number, because there is not a number n which added to its sum of digits gives 123220100133330.

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 63 ways as a sum of consecutive naturals, for example, 171300582 + ... + 172018398.

It is an arithmetic number, because the mean of its divisors is an integer number (2472348235590).

Almost surely, 2^{123220100133330} is an apocalyptic number.

123220100133330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123220100133330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158230287077760).

123220100133330 is an abundant number, since it is smaller than the sum of its proper divisors (193240474022190).

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

123220100133330 is a wasteful number, since it uses less digits than its factorization.

123220100133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722844.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123220100133330 its reverse (33331001022321), we get a palindrome (156551101155651).

The spelling of 123220100133330 in words is "one hundred twenty-three trillion, two hundred twenty billion, one hundred million, one hundred thirty-three thousand, three hundred thirty".