100031212 has 6 divisors (see below), whose sum is σ = 175054628. Its totient is φ = 50015604.

The previous prime is 100031189. The next prime is 100031263. The reversal of 100031212 is 212130001.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12503898 + ... + 12503905.

Almost surely, 2^100031212 is an apocalyptic number.

It is an amenable number.

100031212 is a deficient number, since it is larger than the sum of its proper divisors (75023416).

100031212 is a wasteful number, since it uses less digits than its factorization.

100031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25007807 (or 25007805 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 100031212 is about 10001.5604782454. The cubic root of 100031212 is about 464.2071694282.

Adding to 100031212 its reverse (212130001), we get a palindrome (312161213).

The spelling of 100031212 in words is "one hundred million, thirty-one thousand, two hundred twelve".