123133111320 has 32 divisors (see below), whose sum is σ = 369399334320. Its totient is φ = 32835496320.

The previous prime is 123133111313. The next prime is 123133111331. The reversal of 123133111320 is 23111331321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513054511 + ... + 513054750.

Almost surely, 2^123133111320 is an apocalyptic number.

123133111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123133111320 is an abundant number, since it is smaller than the sum of its proper divisors (246266223000).

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

123133111320 is a wasteful number, since it uses less digits than its factorization.

123133111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026109275 (or 1026109271 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 123133111320 its reverse (23111331321), we get a palindrome (146244442641).

The spelling of 123133111320 in words is "one hundred twenty-three billion, one hundred thirty-three million, one hundred eleven thousand, three hundred twenty".