203412120 has 64 divisors (see below), whose sum is σ = 614740320. Its totient is φ = 53842944.

The previous prime is 203412113. The next prime is 203412133. The reversal of 203412120 is 21214302.

203412120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 203412120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10254 + ... + 22626.

Almost surely, 2^203412120 is an apocalyptic number.

203412120 is a gapful number since it is divisible by the number (20) 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 203412120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307370160).

203412120 is an abundant number, since it is smaller than the sum of its proper divisors (411328200).

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

203412120 is a wasteful number, since it uses less digits than its factorization.

203412120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12524 (or 12520 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 203412120 is about 14262.2620926696. The cubic root of 203412120 is about 588.1105118769.

Adding to 203412120 its reverse (21214302), we get a palindrome (224626422).

The spelling of 203412120 in words is "two hundred three million, four hundred twelve thousand, one hundred twenty".