203012040 has 256 divisors, whose sum is σ = 769720320. Its totient is φ = 41610240.

The previous prime is 203012027. The next prime is 203012041. The reversal of 203012040 is 40210302.

203012040 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 (12).

It is not an unprimeable number, because it can be changed into a prime (203012041) 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, 1173394 + ... + 1173566.

It is an arithmetic number, because the mean of its divisors is an integer number (3006720).

Almost surely, 2^203012040 is an apocalyptic number.

203012040 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 203012040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384860160).

203012040 is an abundant number, since it is smaller than the sum of its proper divisors (566708280).

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

203012040 is a wasteful number, since it uses less digits than its factorization.

203012040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 203012040 is about 14248.2293636788. The cubic root of 203012040 is about 587.7246848462.

Adding to 203012040 its reverse (40210302), we get a palindrome (243222342).

The spelling of 203012040 in words is "two hundred three million, twelve thousand, forty".