13203220131311 has 8 divisors (see below), whose sum is σ = 15093692212224. Its totient is φ = 11313822494520.

The previous prime is 13203220131221. The next prime is 13203220131379. The reversal of 13203220131311 is 11313102230231.

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

It is a de Polignac number, because none of the positive numbers 2^k-13203220131311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203220131511) 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, 268584695 + ... + 268633848.

It is an arithmetic number, because the mean of its divisors is an integer number (1886711526528).

Almost surely, 2^{13203220131311} is an apocalyptic number.

13203220131311 is a deficient number, since it is larger than the sum of its proper divisors (1890472080913).

13203220131311 is an equidigital number, since it uses as much as digits as its factorization.

13203220131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537222061.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13203220131311 its reverse (11313102230231), we get a palindrome (24516322361542).

The spelling of 13203220131311 in words is "thirteen trillion, two hundred three billion, two hundred twenty million, one hundred thirty-one thousand, three hundred eleven".