203221040040 has 96 divisors (see below), whose sum is σ = 660524436000. Its totient is φ = 54187678080.

The previous prime is 203221040021. The next prime is 203221040083. The reversal of 203221040040 is 40040122302.

203221040040 is a `hidden beast` number, since 2 + 0 + 3 + 221 + 0 + 400 + 40 = 666.

203221040040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203221040040² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203221039995 and 203221040022.

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, 7510135 + ... + 7537145.

It is an arithmetic number, because the mean of its divisors is an integer number (6880462875).

Almost surely, 2^203221040040 is an apocalyptic number.

203221040040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203221040040 is an abundant number, since it is smaller than the sum of its proper divisors (457303395960).

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

203221040040 is a wasteful number, since it uses less digits than its factorization.

203221040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47927 (or 47920 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 203221040040 its reverse (40040122302), we get a palindrome (243261162342).

The spelling of 203221040040 in words is "two hundred three billion, two hundred twenty-one million, forty thousand, forty".