13312231302431 has 2 divisors, whose sum is σ = 13312231302432. Its totient is φ = 13312231302430.

The previous prime is 13312231302389. The next prime is 13312231302449. The reversal of 13312231302431 is 13420313221331.

It is a strong prime.

It is an emirp because it is prime and its reverse (13420313221331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13312231302431 - 2²⁶ = 13312164193567 is a prime.

It is a super-2 number, since 2×13312231302431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13312231302394 and 13312231302403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13312231302481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656115651215 + 6656115651216.

It is an arithmetic number, because the mean of its divisors is an integer number (6656115651216).

Almost surely, 2^{13312231302431} is an apocalyptic number.

13312231302431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13312231302431 is an equidigital number, since it uses as much as digits as its factorization.

13312231302431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 13312231302431 its reverse (13420313221331), we get a palindrome (26732544523762).

The spelling of 13312231302431 in words is "thirteen trillion, three hundred twelve billion, two hundred thirty-one million, three hundred two thousand, four hundred thirty-one".