203324001100040 has 64 divisors (see below), whose sum is σ = 457731289960560. Its totient is φ = 81284755809280.

The previous prime is 203324001100021. The next prime is 203324001100043. The reversal of 203324001100040 is 40001100423302.

It can be written as a sum of positive squares in 8 ways, for example, as 79247704885924 + 124076296214116 = 8902118^2 + 11138954^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 203324001099985 and 203324001100021.

It is not an unprimeable number, because it can be changed into a prime (203324001100043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1083509102 + ... + 1083696738.

Almost surely, 2^{203324001100040} is an apocalyptic number.

203324001100040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203324001100040 is an abundant number, since it is smaller than the sum of its proper divisors (254407288860520).

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

203324001100040 is a wasteful number, since it uses less digits than its factorization.

203324001100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202442 (or 202438 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 203324001100040 its reverse (40001100423302), we get a palindrome (243325101523342).

The spelling of 203324001100040 in words is "two hundred three trillion, three hundred twenty-four billion, one million, one hundred thousand, forty".