1320301331 has 4 divisors (see below), whose sum is σ = 1320477312. Its totient is φ = 1320125352.

The previous prime is 1320301327. The next prime is 1320301337. The reversal of 1320301331 is 1331030231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320301331 - 2² = 1320301327 is a prime.

It is a super-2 number, since 2×1320301331² = 3486391209280743122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320301337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76211 + ... + 91916.

It is an arithmetic number, because the mean of its divisors is an integer number (330119328).

Almost surely, 2^1320301331 is an apocalyptic number.

1320301331 is a deficient number, since it is larger than the sum of its proper divisors (175981).

1320301331 is an equidigital number, since it uses as much as digits as its factorization.

1320301331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175980.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1320301331 is about 36335.9509439343. The cubic root of 1320301331 is about 1097.0447759661.

Adding to 1320301331 its reverse (1331030231), we get a palindrome (2651331562).

The spelling of 1320301331 in words is "one billion, three hundred twenty million, three hundred one thousand, three hundred thirty-one".