13453131231 has 24 divisors (see below), whose sum is σ = 19944477696. Its totient is φ = 8733629520.

The previous prime is 13453131221. The next prime is 13453131253. The reversal of 13453131231 is 13213135431.

13453131231 is a `hidden beast` number, since 1 + 3 + 4 + 531 + 3 + 123 + 1 = 666.

It is not a de Polignac number, because 13453131231 - 2¹⁷ = 13453000159 is a prime.

It is a super-2 number, since 2×13453131231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13453131195 and 13453131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13453131221) 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 23 ways as a sum of consecutive naturals, for example, 75586 + ... + 180608.

It is an arithmetic number, because the mean of its divisors is an integer number (831019904).

Almost surely, 2^13453131231 is an apocalyptic number.

13453131231 is a deficient number, since it is larger than the sum of its proper divisors (6491346465).

13453131231 is a wasteful number, since it uses less digits than its factorization.

13453131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105403 (or 105400 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

Adding to 13453131231 its reverse (13213135431), we get a palindrome (26666266662).

The spelling of 13453131231 in words is "thirteen billion, four hundred fifty-three million, one hundred thirty-one thousand, two hundred thirty-one".