12023721192 has 64 divisors (see below), whose sum is σ = 35001694080. Its totient is φ = 3370528512.

The previous prime is 12023721187. The next prime is 12023721197. The reversal of 12023721192 is 29112732021.

It is an interprime number because it is at equal distance from previous prime (12023721187) and next prime (12023721197).

It is not an unprimeable number, because it can be changed into a prime (12023721197) 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, 666283 + ... + 684090.

It is an arithmetic number, because the mean of its divisors is an integer number (546901470).

Almost surely, 2^12023721192 is an apocalyptic number.

12023721192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12023721192 is an abundant number, since it is smaller than the sum of its proper divisors (22977972888).

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

12023721192 is a wasteful number, since it uses less digits than its factorization.

12023721192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350442 (or 1350438 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 12023721192 in words is "twelve billion, twenty-three million, seven hundred twenty-one thousand, one hundred ninety-two".