1003121212 has 6 divisors (see below), whose sum is σ = 1755462128. Its totient is φ = 501560604.

The previous prime is 1003121179. The next prime is 1003121213. The reversal of 1003121212 is 2121213001.

It is a junction number, because it is equal to n+sod(n) for n = 1003121192 and 1003121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003121213) by changing a digit.

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, 125390148 + ... + 125390155.

Almost surely, 2^1003121212 is an apocalyptic number.

It is an amenable number.

1003121212 is a deficient number, since it is larger than the sum of its proper divisors (752340916).

1003121212 is a wasteful number, since it uses less digits than its factorization.

1003121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250780307 (or 250780305 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1003121212 is about 31672.0888480694. The cubic root of 1003121212 is about 1001.0393234326.

Adding to 1003121212 its reverse (2121213001), we get a palindrome (3124334213).

The spelling of 1003121212 in words is "one billion, three million, one hundred twenty-one thousand, two hundred twelve".