203000344000423 has 2 divisors, whose sum is σ = 203000344000424. Its totient is φ = 203000344000422.

The previous prime is 203000344000387. The next prime is 203000344000429. The reversal of 203000344000423 is 324000443000302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203000344000423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203000344000429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101500172000211 + 101500172000212.

It is an arithmetic number, because the mean of its divisors is an integer number (101500172000212).

Almost surely, 2^{203000344000423} is an apocalyptic number.

203000344000423 is a deficient number, since it is larger than the sum of its proper divisors (1).

203000344000423 is an equidigital number, since it uses as much as digits as its factorization.

203000344000423 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 25.

Adding to 203000344000423 its reverse (324000443000302), we get a palindrome (527000787000725).

The spelling of 203000344000423 in words is "two hundred three trillion, three hundred forty-four million, four hundred twenty-three", and thus it is an aban number.