101000000203 has 4 divisors (see below), whose sum is σ = 101051823600. Its totient is φ = 100948176808.

The previous prime is 101000000137. The next prime is 101000000219. The reversal of 101000000203 is 302000000101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101000000203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101000000243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25908775 + ... + 25912672.

It is an arithmetic number, because the mean of its divisors is an integer number (25262955900).

Almost surely, 2^101000000203 is an apocalyptic number.

101000000203 is a deficient number, since it is larger than the sum of its proper divisors (51823397).

101000000203 is an equidigital number, since it uses as much as digits as its factorization.

101000000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51823396.

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

Adding to 101000000203 its reverse (302000000101), we get a palindrome (403000000304).

The spelling of 101000000203 in words is "one hundred one billion, two hundred three", and thus it is an aban number.