13131132331 has 4 divisors (see below), whose sum is σ = 13702051152. Its totient is φ = 12560213512.

The previous prime is 13131132319. The next prime is 13131132347. The reversal of 13131132331 is 13323113131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13323113131 = 30677 ⋅434303.

It is a cyclic number.

It is not a de Polignac number, because 13131132331 - 2¹¹ = 13131130283 is a prime.

It is a super-2 number, since 2×13131132331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131132431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285459376 + ... + 285459421.

It is an arithmetic number, because the mean of its divisors is an integer number (3425512788).

Almost surely, 2^13131132331 is an apocalyptic number.

13131132331 is a deficient number, since it is larger than the sum of its proper divisors (570918821).

13131132331 is an equidigital number, since it uses as much as digits as its factorization.

13131132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570918820.

The product of its digits is 486, while the sum is 22.

Adding to 13131132331 its reverse (13323113131), we get a palindrome (26454245462).

The spelling of 13131132331 in words is "thirteen billion, one hundred thirty-one million, one hundred thirty-two thousand, three hundred thirty-one".