203403323044 has 24 divisors (see below), whose sum is σ = 366746962680. Its totient is φ = 98661598464.

The previous prime is 203403323023. The next prime is 203403323143. The reversal of 203403323044 is 440323304302.

It can be written as a sum of positive squares in 4 ways, for example, as 442260900 + 202961062144 = 21030^2 + 450512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5371299 + ... + 5409034.

It is an arithmetic number, because the mean of its divisors is an integer number (15281123445).

Almost surely, 2^203403323044 is an apocalyptic number.

It is an amenable number.

203403323044 is a deficient number, since it is larger than the sum of its proper divisors (163343639636).

203403323044 is a wasteful number, since it uses less digits than its factorization.

203403323044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10780479 (or 10780477 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 203403323044 its reverse (440323304302), we get a palindrome (643726627346).

The spelling of 203403323044 in words is "two hundred three billion, four hundred three million, three hundred twenty-three thousand, forty-four".