13203431311 has 8 divisors (see below), whose sum is σ = 15090361344. Its totient is φ = 11316682680.

The previous prime is 13203431279. The next prime is 13203431369. The reversal of 13203431311 is 11313430231.

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

It is a cyclic number.

It is not a de Polignac number, because 13203431311 - 2⁵ = 13203431279 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 (13213431311) 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, 196926 + ... + 255316.

It is an arithmetic number, because the mean of its divisors is an integer number (1886295168).

Almost surely, 2^13203431311 is an apocalyptic number.

13203431311 is a deficient number, since it is larger than the sum of its proper divisors (1886930033).

13203431311 is an equidigital number, since it uses as much as digits as its factorization.

13203431311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90701.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13203431311 its reverse (11313430231), we get a palindrome (24516861542).

The spelling of 13203431311 in words is "thirteen billion, two hundred three million, four hundred thirty-one thousand, three hundred eleven".