12289240320 has 144 divisors (see below), whose sum is σ = 44855825280. Its totient is φ = 2808963072.

The previous prime is 12289240319. The next prime is 12289240321. The reversal of 12289240320 is 2304298221.

It is an interprime number because it is at equal distance from previous prime (12289240319) and next prime (12289240321).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12289240321) 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, 201715 + ... + 255474.

Almost surely, 2^12289240320 is an apocalyptic number.

12289240320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12289240320 is an abundant number, since it is smaller than the sum of its proper divisors (32566584960).

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

12289240320 is an equidigital number, since it uses as much as digits as its factorization.

12289240320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457220 (or 457206 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 12289240320 in words is "twelve billion, two hundred eighty-nine million, two hundred forty thousand, three hundred twenty".