13431032311 has 4 divisors (see below), whose sum is σ = 13434831000. Its totient is φ = 13427233624.

The previous prime is 13431032297. The next prime is 13431032353. The reversal of 13431032311 is 11323013431.

13431032311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13431032311 - 2¹³ = 13431024119 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 (13431032371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894036 + ... + 1901113.

It is an arithmetic number, because the mean of its divisors is an integer number (3358707750).

Almost surely, 2^13431032311 is an apocalyptic number.

13431032311 is a deficient number, since it is larger than the sum of its proper divisors (3798689).

13431032311 is an equidigital number, since it uses as much as digits as its factorization.

13431032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798688.

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

Adding to 13431032311 its reverse (11323013431), we get a palindrome (24754045742).

The spelling of 13431032311 in words is "thirteen billion, four hundred thirty-one million, thirty-two thousand, three hundred eleven".