123221001323320 has 16 divisors (see below), whose sum is σ = 277247252977560. Its totient is φ = 49288400529312.

The previous prime is 123221001323311. The next prime is 123221001323401. The reversal of 123221001323320 is 23323100122321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540262516502 + ... + 1540262516581.

Almost surely, 2^{123221001323320} is an apocalyptic number.

123221001323320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123221001323320 is an abundant number, since it is smaller than the sum of its proper divisors (154026251654240).

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

123221001323320 is a wasteful number, since it uses less digits than its factorization.

123221001323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080525033094 (or 3080525033090 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 123221001323320 its reverse (23323100122321), we get a palindrome (146544101445641).

The spelling of 123221001323320 in words is "one hundred twenty-three trillion, two hundred twenty-one billion, one million, three hundred twenty-three thousand, three hundred twenty".