1320113212 has 24 divisors (see below), whose sum is σ = 2522040192. Its totient is φ = 599617200.

The previous prime is 1320113177. The next prime is 1320113227. The reversal of 1320113212 is 2123110231.

It is a congruent number.

It is an unprimeable number.

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, 55137 + ... + 75367.

It is an arithmetic number, because the mean of its divisors is an integer number (105085008).

Almost surely, 2^1320113212 is an apocalyptic number.

It is an amenable number.

1320113212 is a deficient number, since it is larger than the sum of its proper divisors (1201926980).

1320113212 is a wasteful number, since it uses less digits than its factorization.

1320113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21729 (or 21727 counting only the distinct ones).

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

The square root of 1320113212 is about 36333.3622446368. The cubic root of 1320113212 is about 1096.9926704950.

Adding to 1320113212 its reverse (2123110231), we get a palindrome (3443223443).

The spelling of 1320113212 in words is "one billion, three hundred twenty million, one hundred thirteen thousand, two hundred twelve".