13431231127 has 2 divisors, whose sum is σ = 13431231128. Its totient is φ = 13431231126.

The previous prime is 13431231109. The next prime is 13431231161. The reversal of 13431231127 is 72113213431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13431231127 - 2⁷ = 13431230999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13431231095 and 13431231104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13431231227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715615563 + 6715615564.

It is an arithmetic number, because the mean of its divisors is an integer number (6715615564).

Almost surely, 2^13431231127 is an apocalyptic number.

13431231127 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431231127 is an equidigital number, since it uses as much as digits as its factorization.

13431231127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

Adding to 13431231127 its reverse (72113213431), we get a palindrome (85544444558).

The spelling of 13431231127 in words is "thirteen billion, four hundred thirty-one million, two hundred thirty-one thousand, one hundred twenty-seven".