1320351411 has 32 divisors (see below), whose sum is σ = 1904025600. Its totient is φ = 811923840.

The previous prime is 1320351391. The next prime is 1320351419. The reversal of 1320351411 is 1141530231.

It is not a de Polignac number, because 1320351411 - 2¹⁹ = 1319827123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320351419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209965 + ... + 216161.

It is an arithmetic number, because the mean of its divisors is an integer number (59500800).

Almost surely, 2^1320351411 is an apocalyptic number.

1320351411 is a deficient number, since it is larger than the sum of its proper divisors (583674189).

1320351411 is a wasteful number, since it uses less digits than its factorization.

1320351411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6339.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1320351411 is about 36336.6400620641. The cubic root of 1320351411 is about 1097.0586463623.

Adding to 1320351411 its reverse (1141530231), we get a palindrome (2461881642).

The spelling of 1320351411 in words is "one billion, three hundred twenty million, three hundred fifty-one thousand, four hundred eleven".