12002989320 has 256 divisors, whose sum is σ = 48132864000. Its totient is φ = 2599112448.

The previous prime is 12002989291. The next prime is 12002989321. The reversal of 12002989320 is 2398920021.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12002989321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101859 + ... + 185421.

It is an arithmetic number, because the mean of its divisors is an integer number (188019000).

Almost surely, 2^12002989320 is an apocalyptic number.

12002989320 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 12002989320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24066432000).

12002989320 is an abundant number, since it is smaller than the sum of its proper divisors (36129874680).

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

12002989320 is a wasteful number, since it uses less digits than its factorization.

12002989320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83609 (or 83599 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 12002989320 in words is "twelve billion, two million, nine hundred eighty-nine thousand, three hundred twenty".