100303212 has 24 divisors (see below), whose sum is σ = 234348912. Its totient is φ = 33390400.

The previous prime is 100303211. The next prime is 100303237. The reversal of 100303212 is 212303001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (100303211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4762 + ... + 14942.

It is an arithmetic number, because the mean of its divisors is an integer number (9764538).

Almost surely, 2^100303212 is an apocalyptic number.

100303212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100303212 is an abundant number, since it is smaller than the sum of its proper divisors (134045700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100303212 is a wasteful number, since it uses less digits than its factorization.

100303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009 (or 11007 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100303212 is about 10015.1491252003. The cubic root of 100303212 is about 464.6275384849.

Adding to 100303212 its reverse (212303001), we get a palindrome (312606213).

The spelling of 100303212 in words is "one hundred million, three hundred three thousand, two hundred twelve".