1320013311 has 8 divisors (see below), whose sum is σ = 1776466944. Its totient is φ = 871784280.

The previous prime is 1320013301. The next prime is 1320013319. The reversal of 1320013311 is 1133100231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320013311 - 2¹⁹ = 1319489023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320013319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055775 + ... + 2056416.

It is an arithmetic number, because the mean of its divisors is an integer number (222058368).

Almost surely, 2^1320013311 is an apocalyptic number.

1320013311 is a deficient number, since it is larger than the sum of its proper divisors (456453633).

1320013311 is a wasteful number, since it uses less digits than its factorization.

1320013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112301.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1320013311 is about 36331.9874353166. The cubic root of 1320013311 is about 1096.9649977600.

Adding to 1320013311 its reverse (1133100231), we get a palindrome (2453113542).

The spelling of 1320013311 in words is "one billion, three hundred twenty million, thirteen thousand, three hundred eleven".