123132221312320 has 112 divisors (see below), whose sum is σ = 325107600996096. Its totient is φ = 44041330944000.

The previous prime is 123132221312291. The next prime is 123132221312323. The reversal of 123132221312320 is 23213122231321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123132221312323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286512696 + ... + 286942135.

Almost surely, 2^{123132221312320} is an apocalyptic number.

123132221312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123132221312320 is an abundant number, since it is smaller than the sum of its proper divisors (201975379683776).

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

123132221312320 is a wasteful number, since it uses less digits than its factorization.

123132221312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573454920 (or 573454910 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 123132221312320 its reverse (23213122231321), we get a palindrome (146345343543641).

The spelling of 123132221312320 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, two hundred twenty-one million, three hundred twelve thousand, three hundred twenty".