13431456456329 has 2 divisors, whose sum is σ = 13431456456330. Its totient is φ = 13431456456328.

The previous prime is 13431456456311. The next prime is 13431456456401. The reversal of 13431456456329 is 92365465413431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11522983280704 + 1908473175625 = 3394552^2 + 1381475^2 .

It is a cyclic number.

It is not a de Polignac number, because 13431456456329 - 2¹² = 13431456452233 is a prime.

It is not a weakly prime, because it can be changed into another prime (13431456456029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715728228164 + 6715728228165.

It is an arithmetic number, because the mean of its divisors is an integer number (6715728228165).

Almost surely, 2^{13431456456329} is an apocalyptic number.

It is an amenable number.

13431456456329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431456456329 is an equidigital number, since it uses as much as digits as its factorization.

13431456456329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27993600, while the sum is 56.

The spelling of 13431456456329 in words is "thirteen trillion, four hundred thirty-one billion, four hundred fifty-six million, four hundred fifty-six thousand, three hundred twenty-nine".