12144121232 has 20 divisors (see below), whose sum is σ = 24076427760. Its totient is φ = 5930849568.

The previous prime is 12144121219. The next prime is 12144121291. The reversal of 12144121232 is 23212144121.

It is a super-3 number, since 3×12144121232³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12144121198 and 12144121207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8824982 + ... + 8826357.

It is an arithmetic number, because the mean of its divisors is an integer number (1203821388).

Almost surely, 2^12144121232 is an apocalyptic number.

It is an amenable number.

12144121232 is a deficient number, since it is larger than the sum of its proper divisors (11932306528).

12144121232 is a wasteful number, since it uses less digits than its factorization.

12144121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17651390 (or 17651384 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 12144121232 its reverse (23212144121), we get a palindrome (35356265353).

The spelling of 12144121232 in words is "twelve billion, one hundred forty-four million, one hundred twenty-one thousand, two hundred thirty-two".