1320542210 has 64 divisors (see below), whose sum is σ = 2640792672. Its totient is φ = 472283136.

The previous prime is 1320542203. The next prime is 1320542243. The reversal of 1320542210 is 122450231.

1320542210 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 157527601 + 1163014609 = 12551^2 + 34103^2 .

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 1408862 + ... + 1409798.

Almost surely, 2^1320542210 is an apocalyptic number.

1320542210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320542210 is a deficient number, since it is larger than the sum of its proper divisors (1320250462).

1320542210 is a wasteful number, since it uses less digits than its factorization.

1320542210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287.

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

The square root of 1320542210 is about 36339.2654025917. The cubic root of 1320542210 is about 1097.1114877522. Note that the first 3 decimals are identical.

Adding to 1320542210 its reverse (122450231), we get a palindrome (1442992441).

The spelling of 1320542210 in words is "one billion, three hundred twenty million, five hundred forty-two thousand, two hundred ten".