13313131232331 has 32 divisors (see below), whose sum is σ = 20678679060480. Its totient is φ = 7460630745984.

The previous prime is 13313131232281. The next prime is 13313131232377. The reversal of 13313131232331 is 13323213131331.

It is not a de Polignac number, because 13313131232331 - 2¹³ = 13313131224139 is a prime.

It is a super-2 number, since 2×13313131232331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13313131232831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179160 + ... + 5163173.

It is an arithmetic number, because the mean of its divisors is an integer number (646208720640).

Almost surely, 2^{13313131232331} is an apocalyptic number.

13313131232331 is a deficient number, since it is larger than the sum of its proper divisors (7365547828149).

13313131232331 is a wasteful number, since it uses less digits than its factorization.

13313131232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344635.

The product of its digits is 8748, while the sum is 30.

Adding to 13313131232331 its reverse (13323213131331), we get a palindrome (26636344363662).

The spelling of 13313131232331 in words is "thirteen trillion, three hundred thirteen billion, one hundred thirty-one million, two hundred thirty-two thousand, three hundred thirty-one".