100212003 has 12 divisors (see below), whose sum is σ = 145385760. Its totient is φ = 66514896.

The previous prime is 100211981. The next prime is 100212043. The reversal of 100212003 is 300212001.

It is a happy number.

It is not a de Polignac number, because 100212003 - 2⁵ = 100211971 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 (100212043) 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, 22251 + ... + 26372.

It is an arithmetic number, because the mean of its divisors is an integer number (12115480).

Almost surely, 2^100212003 is an apocalyptic number.

100212003 is a deficient number, since it is larger than the sum of its proper divisors (45173757).

100212003 is a wasteful number, since it uses less digits than its factorization.

100212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48858 (or 48855 counting only the distinct ones).

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

The square root of 100212003 is about 10010.5945377885. The cubic root of 100212003 is about 464.4866620892.

Adding to 100212003 its reverse (300212001), we get a palindrome (400424004).

The spelling of 100212003 in words is "one hundred million, two hundred twelve thousand, three".