100012000203 has 6 divisors (see below), whose sum is σ = 144461778084. Its totient is φ = 66674666796.

The previous prime is 100012000199. The next prime is 100012000223. The reversal of 100012000203 is 302000210001.

It is a happy number.

It is not a de Polignac number, because 100012000203 - 2² = 100012000199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11112444467 = 100012000203 / (1 + 0 + 0 + 0 + 1 + 2 + 0 + 0 + 0 + 2 + 0 + 3).

It is not an unprimeable number, because it can be changed into a prime (100012000223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5556222225 + ... + 5556222242.

It is an arithmetic number, because the mean of its divisors is an integer number (24076963014).

Almost surely, 2^100012000203 is an apocalyptic number.

100012000203 is a deficient number, since it is larger than the sum of its proper divisors (44449777881).

100012000203 is a wasteful number, since it uses less digits than its factorization.

100012000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112444473 (or 11112444470 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 100012000203 its reverse (302000210001), we get a palindrome (402012210204).

The spelling of 100012000203 in words is "one hundred billion, twelve million, two hundred three", and thus it is an aban number.