1320212718 has 24 divisors (see below), whose sum is σ = 3120503256. Its totient is φ = 400064400.

The previous prime is 1320212711. The next prime is 1320212731. The reversal of 1320212718 is 8172120231.

It is a junction number, because it is equal to n+sod(n) for n = 1320212691 and 1320212700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320212711) 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 11 ways as a sum of consecutive naturals, for example, 3333673 + ... + 3334068.

It is an arithmetic number, because the mean of its divisors is an integer number (130020969).

Almost surely, 2^1320212718 is an apocalyptic number.

1320212718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1320212718 is an abundant number, since it is smaller than the sum of its proper divisors (1800290538).

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

1320212718 is a wasteful number, since it uses less digits than its factorization.

1320212718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667760 (or 6667757 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1320212718 is about 36334.7315663677. The cubic root of 1320212718 is about 1097.0202324266.

Adding to 1320212718 its reverse (8172120231), we get a palindrome (9492332949).

The spelling of 1320212718 in words is "one billion, three hundred twenty million, two hundred twelve thousand, seven hundred eighteen".