12203535400 has 96 divisors (see below), whose sum is σ = 32448905280. Its totient is φ = 4181184000.

The previous prime is 12203535389. The next prime is 12203535433. The reversal of 12203535400 is 453530221.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3415615 + ... + 3419185.

It is an arithmetic number, because the mean of its divisors is an integer number (338009430).

Almost surely, 2^12203535400 is an apocalyptic number.

12203535400 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 12203535400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16224452640).

12203535400 is an abundant number, since it is smaller than the sum of its proper divisors (20245369880).

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

12203535400 is a wasteful number, since it uses less digits than its factorization.

12203535400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035 (or 6026 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 12203535400 in words is "twelve billion, two hundred three million, five hundred thirty-five thousand, four hundred".