203231040443 has 2 divisors, whose sum is σ = 203231040444. Its totient is φ = 203231040442.

The previous prime is 203231040433. The next prime is 203231040473. The reversal of 203231040443 is 344040132302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203231040443 - 2¹⁰ = 203231039419 is a prime.

It is not a weakly prime, because it can be changed into another prime (203231040413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101615520221 + 101615520222.

It is an arithmetic number, because the mean of its divisors is an integer number (101615520222).

Almost surely, 2^203231040443 is an apocalyptic number.

203231040443 is a deficient number, since it is larger than the sum of its proper divisors (1).

203231040443 is an equidigital number, since it uses as much as digits as its factorization.

203231040443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 203231040443 its reverse (344040132302), we get a palindrome (547271172745).

The spelling of 203231040443 in words is "two hundred three billion, two hundred thirty-one million, forty thousand, four hundred forty-three".