1320231212 has 12 divisors (see below), whose sum is σ = 2325121680. Its totient is φ = 655910736.

The previous prime is 1320231197. The next prime is 1320231229. The reversal of 1320231212 is 2121320231.

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, 1050512 + ... + 1051767.

It is an arithmetic number, because the mean of its divisors is an integer number (193760140).

Almost surely, 2^1320231212 is an apocalyptic number.

It is an amenable number.

1320231212 is a deficient number, since it is larger than the sum of its proper divisors (1004890468).

1320231212 is a wasteful number, since it uses less digits than its factorization.

1320231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102440 (or 2102438 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1320231212 is about 36334.9860602698. The cubic root of 1320231212 is about 1097.0253548833.

Adding to 1320231212 its reverse (2121320231), we get a palindrome (3441551443).

It can be divided in two parts, 1320231 and 212, that multiplied together give a palindrome (279888972).

The spelling of 1320231212 in words is "one billion, three hundred twenty million, two hundred thirty-one thousand, two hundred twelve".