100012203 has 12 divisors (see below), whose sum is σ = 144638208. Its totient is φ = 66593520.

The previous prime is 100012189. The next prime is 100012217. The reversal of 100012203 is 302210001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100012189) and next prime (100012217).

It is not a de Polignac number, because 100012203 - 2¹⁸ = 99750059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100012223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1558 + ... + 14228.

It is an arithmetic number, because the mean of its divisors is an integer number (12053184).

Almost surely, 2^100012203 is an apocalyptic number.

100012203 is a deficient number, since it is larger than the sum of its proper divisors (44626005).

100012203 is a wasteful number, since it uses less digits than its factorization.

100012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13554 (or 13551 counting only the distinct ones).

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

The square root of 100012203 is about 10000.6101313870. The cubic root of 100012203 is about 464.1777630295.

Adding to 100012203 its reverse (302210001), we get a palindrome (402222204).

It can be divided in two parts, 1000 and 12203, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 100012203 in words is "one hundred million, twelve thousand, two hundred three".