12243040032 has 48 divisors (see below), whose sum is σ = 33829457760. Its totient is φ = 3866222592.

The previous prime is 12243040009. The next prime is 12243040037. The reversal of 12243040032 is 23004034221.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×12243040032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12243039990 and 12243040008.

It is not an unprimeable number, because it can be changed into a prime (12243040037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3354273 + ... + 3357920.

It is an arithmetic number, because the mean of its divisors is an integer number (704780370).

Almost surely, 2^12243040032 is an apocalyptic number.

12243040032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12243040032 is an abundant number, since it is smaller than the sum of its proper divisors (21586417728).

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

12243040032 is a wasteful number, since it uses less digits than its factorization.

12243040032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712225 (or 6712217 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12243040032 its reverse (23004034221), we get a palindrome (35247074253).

The spelling of 12243040032 in words is "twelve billion, two hundred forty-three million, forty thousand, thirty-two".