13143232331 has 2 divisors, whose sum is σ = 13143232332. Its totient is φ = 13143232330.

The previous prime is 13143232307. The next prime is 13143232369. The reversal of 13143232331 is 13323234131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13143232331 - 2¹⁰ = 13143231307 is a prime.

It is a super-2 number, since 2×13143232331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13143232331.

It is not a weakly prime, because it can be changed into another prime (13143232391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571616165 + 6571616166.

It is an arithmetic number, because the mean of its divisors is an integer number (6571616166).

Almost surely, 2^13143232331 is an apocalyptic number.

13143232331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13143232331 is an equidigital number, since it uses as much as digits as its factorization.

13143232331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

Adding to 13143232331 its reverse (13323234131), we get a palindrome (26466466462).

The spelling of 13143232331 in words is "thirteen billion, one hundred forty-three million, two hundred thirty-two thousand, three hundred thirty-one".