1320204313311 has 8 divisors (see below), whose sum is σ = 1895677988400. Its totient is φ = 812433423552.

The previous prime is 1320204313291. The next prime is 1320204313327. The reversal of 1320204313311 is 1133134020231.

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

It is not a de Polignac number, because 1320204313311 - 2¹⁷ = 1320204182239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320204313331) 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, 16925696286 + ... + 16925696363.

It is an arithmetic number, because the mean of its divisors is an integer number (236959748550).

Almost surely, 2^{1320204313311} is an apocalyptic number.

1320204313311 is a deficient number, since it is larger than the sum of its proper divisors (575473675089).

1320204313311 is a wasteful number, since it uses less digits than its factorization.

1320204313311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33851392665.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1320204313311 its reverse (1133134020231), we get a palindrome (2453338333542).

The spelling of 1320204313311 in words is "one trillion, three hundred twenty billion, two hundred four million, three hundred thirteen thousand, three hundred eleven".