123112323320 has 64 divisors (see below), whose sum is σ = 316605957120. Its totient is φ = 42205751424.

The previous prime is 123112323317. The next prime is 123112323403. The reversal of 123112323320 is 23323211321.

It is a congruent number.

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, 4410929 + ... + 4438751.

It is an arithmetic number, because the mean of its divisors is an integer number (4946968080).

Almost surely, 2^123112323320 is an apocalyptic number.

123112323320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123112323320 is an abundant number, since it is smaller than the sum of its proper divisors (193493633800).

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

123112323320 is a wasteful number, since it uses less digits than its factorization.

123112323320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43644 (or 43640 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123112323320 its reverse (23323211321), we get a palindrome (146435534641).

The spelling of 123112323320 in words is "one hundred twenty-three billion, one hundred twelve million, three hundred twenty-three thousand, three hundred twenty".