1002311212 has 24 divisors (see below), whose sum is σ = 2005794560. Its totient is φ = 429310800.

The previous prime is 1002311203. The next prime is 1002311213. The reversal of 1002311212 is 2121132001.

It is a junction number, because it is equal to n+sod(n) for n = 1002311192 and 1002311201.

It is not an unprimeable number, because it can be changed into a prime (1002311213) 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 in 7 ways as a sum of consecutive naturals, for example, 43087 + ... + 62137.

Almost surely, 2^1002311212 is an apocalyptic number.

It is an amenable number.

1002311212 is an abundant number, since it is smaller than the sum of its proper divisors (1003483348).

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

1002311212 is a wasteful number, since it uses less digits than its factorization.

1002311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20941 (or 20939 counting only the distinct ones).

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

The square root of 1002311212 is about 31659.2989814999. The cubic root of 1002311212 is about 1000.7698112386.

Adding to 1002311212 its reverse (2121132001), we get a palindrome (3123443213).

The spelling of 1002311212 in words is "one billion, two million, three hundred eleven thousand, two hundred twelve".