1311030212 has 12 divisors (see below), whose sum is σ = 2296390656. Its totient is φ = 654918600.

The previous prime is 1311030211. The next prime is 1311030223. The reversal of 1311030212 is 2120301131.

It is not an unprimeable number, because it can be changed into a prime (1311030211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144164 + ... + 152987.

It is an arithmetic number, because the mean of its divisors is an integer number (191365888).

Almost surely, 2^1311030212 is an apocalyptic number.

It is an amenable number.

1311030212 is a deficient number, since it is larger than the sum of its proper divisors (985360444).

1311030212 is a wasteful number, since it uses less digits than its factorization.

1311030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298258 (or 298256 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1311030212 is about 36208.1511817436. The cubic root of 1311030212 is about 1094.4709361491.

Adding to 1311030212 its reverse (2120301131), we get a palindrome (3431331343).

The spelling of 1311030212 in words is "one billion, three hundred eleven million, thirty thousand, two hundred twelve".