12312333040 has 40 divisors (see below), whose sum is σ = 32715629280. Its totient is φ = 4221371136.

The previous prime is 12312332999. The next prime is 12312333071. The reversal of 12312333040 is 4033321321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10992595 + ... + 10993714.

It is an arithmetic number, because the mean of its divisors is an integer number (817890732).

Almost surely, 2^12312333040 is an apocalyptic number.

12312333040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312333040 is an abundant number, since it is smaller than the sum of its proper divisors (20403296240).

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

12312333040 is a wasteful number, since it uses less digits than its factorization.

12312333040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21986329 (or 21986323 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12312333040 its reverse (4033321321), we get a palindrome (16345654361).

The spelling of 12312333040 in words is "twelve billion, three hundred twelve million, three hundred thirty-three thousand, forty".