203231040451 has 32 divisors (see below), whose sum is σ = 212388544512. Its totient is φ = 194306999040.

The previous prime is 203231040443. The next prime is 203231040473. The reversal of 203231040451 is 154040132302.

203231040451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 203231040451 - 2³ = 203231040443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203231040151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329385495 + ... + 329386111.

It is an arithmetic number, because the mean of its divisors is an integer number (6637142016).

Almost surely, 2^203231040451 is an apocalyptic number.

203231040451 is a deficient number, since it is larger than the sum of its proper divisors (9157504061).

203231040451 is a wasteful number, since it uses less digits than its factorization.

203231040451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 203231040451 its reverse (154040132302), we get a palindrome (357271172753).

The spelling of 203231040451 in words is "two hundred three billion, two hundred thirty-one million, forty thousand, four hundred fifty-one".