12203503312 has 480 divisors, whose sum is σ = 36121438080. Its totient is φ = 3901685760.

The previous prime is 12203503297. The next prime is 12203503327. The reversal of 12203503312 is 21330530221.

It is an interprime number because it is at equal distance from previous prime (12203503297) and next prime (12203503327).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36212008 + ... + 36212344.

It is an arithmetic number, because the mean of its divisors is an integer number (75252996).

Almost surely, 2^12203503312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12203503312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18060719040).

12203503312 is an abundant number, since it is smaller than the sum of its proper divisors (23917934768).

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

12203503312 is a wasteful number, since it uses less digits than its factorization.

12203503312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

It can be divided in two parts, 12203 and 503312, that added together give a palindrome (515515).

The spelling of 12203503312 in words is "twelve billion, two hundred three million, five hundred three thousand, three hundred twelve".