123220323320 has 32 divisors (see below), whose sum is σ = 277265931120. Its totient is φ = 49284537600.

The previous prime is 123220323319. The next prime is 123220323323. The reversal of 123220323320 is 23323022321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123220323323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482420 + ... + 692220.

Almost surely, 2^123220323320 is an apocalyptic number.

123220323320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123220323320 is an abundant number, since it is smaller than the sum of its proper divisors (154045607800).

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

123220323320 is a wasteful number, since it uses less digits than its factorization.

123220323320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224495 (or 224491 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 123220323320 its reverse (23323022321), we get a palindrome (146543345641).

The spelling of 123220323320 in words is "one hundred twenty-three billion, two hundred twenty million, three hundred twenty-three thousand, three hundred twenty".