101000203 has 2 divisors, whose sum is σ = 101000204. Its totient is φ = 101000202.

The previous prime is 101000197. The next prime is 101000231. The reversal of 101000203 is 302000101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101000203 is a prime.

It is not a weakly prime, because it can be changed into another prime (101000233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500101 + 50500102.

It is an arithmetic number, because the mean of its divisors is an integer number (50500102).

Almost surely, 2^101000203 is an apocalyptic number.

101000203 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000203 is an equidigital number, since it uses as much as digits as its factorization.

101000203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 101000203 is about 10049.8857207433. The cubic root of 101000203 is about 465.7012627844.

Adding to 101000203 its reverse (302000101), we get a palindrome (403000304).

The spelling of 101000203 in words is "one hundred one million, two hundred three", and thus it is an aban number.