1320205412 has 24 divisors (see below), whose sum is σ = 2368478112. Its totient is φ = 643521600.

The previous prime is 1320205373. The next prime is 1320205421. The reversal of 1320205412 is 2145020231.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327803 + ... + 331805.

It is an arithmetic number, because the mean of its divisors is an integer number (98686588).

Almost surely, 2^1320205412 is an apocalyptic number.

It is an amenable number.

1320205412 is a deficient number, since it is larger than the sum of its proper divisors (1048272700).

1320205412 is a wasteful number, since it uses less digits than its factorization.

1320205412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059 (or 6057 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1320205412 is about 36334.6310288133. The cubic root of 1320205412 is about 1097.0182088021.

Adding to 1320205412 its reverse (2145020231), we get a palindrome (3465225643).

The spelling of 1320205412 in words is "one billion, three hundred twenty million, two hundred five thousand, four hundred twelve".