12320303040 has 224 divisors, whose sum is σ = 44114069760. Its totient is φ = 3236226048.

The previous prime is 12320303011. The next prime is 12320303063. The reversal of 12320303040 is 4030302321.

12320303040 is a `hidden beast` number, since 1 + 2 + 320 + 303 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 568239 + ... + 589521.

Almost surely, 2^12320303040 is an apocalyptic number.

12320303040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12320303040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22057034880).

12320303040 is an abundant number, since it is smaller than the sum of its proper divisors (31793766720).

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

12320303040 is a wasteful number, since it uses less digits than its factorization.

12320303040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21376 (or 21360 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 12320303040 its reverse (4030302321), we get a palindrome (16350605361).

The spelling of 12320303040 in words is "twelve billion, three hundred twenty million, three hundred three thousand, forty".