12133123320 has 64 divisors (see below), whose sum is σ = 37173841920. Its totient is φ = 3166657664.

The previous prime is 12133123307. The next prime is 12133123333. The reversal of 12133123320 is 2332133121.

It is an interprime number because it is at equal distance from previous prime (12133123307) and next prime (12133123333).

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, 1069992 + ... + 1081271.

It is an arithmetic number, because the mean of its divisors is an integer number (580841280).

Almost surely, 2^12133123320 is an apocalyptic number.

12133123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12133123320 is an abundant number, since it is smaller than the sum of its proper divisors (25040718600).

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

12133123320 is a wasteful number, since it uses less digits than its factorization.

12133123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151324 (or 2151320 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12133123320 its reverse (2332133121), we get a palindrome (14465256441).

The spelling of 12133123320 in words is "twelve billion, one hundred thirty-three million, one hundred twenty-three thousand, three hundred twenty".