1310231212 has 12 divisors (see below), whose sum is σ = 2301430320. Its totient is φ = 652679696.

The previous prime is 1310231201. The next prime is 1310231239. The reversal of 1310231212 is 2121320131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607768 + ... + 609919.

It is an arithmetic number, because the mean of its divisors is an integer number (191785860).

Almost surely, 2^1310231212 is an apocalyptic number.

It is an amenable number.

1310231212 is a deficient number, since it is larger than the sum of its proper divisors (991199108).

1310231212 is a wasteful number, since it uses less digits than its factorization.

1310231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217960 (or 1217958 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1310231212 is about 36197.1160729691. The cubic root of 1310231212 is about 1094.2485512440.

Adding to 1310231212 its reverse (2121320131), we get a palindrome (3431551343).

The spelling of 1310231212 in words is "one billion, three hundred ten million, two hundred thirty-one thousand, two hundred twelve".