1311412626431 has 2 divisors, whose sum is σ = 1311412626432. Its totient is φ = 1311412626430.

The previous prime is 1311412626413. The next prime is 1311412626437. The reversal of 1311412626431 is 1346262141131.

Together with previous prime (1311412626413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311412626431 - 2⁶ = 1311412626367 is a prime.

It is a super-2 number, since 2×1311412626431² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311412626391 and 1311412626400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311412626437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655706313215 + 655706313216.

It is an arithmetic number, because the mean of its divisors is an integer number (655706313216).

Almost surely, 2^{1311412626431} is an apocalyptic number.

1311412626431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311412626431 is an equidigital number, since it uses as much as digits as its factorization.

1311412626431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

Adding to 1311412626431 its reverse (1346262141131), we get a palindrome (2657674767562).

It can be divided in two parts, 131141 and 2626431, that added together give a palindrome (2757572).

The spelling of 1311412626431 in words is "one trillion, three hundred eleven billion, four hundred twelve million, six hundred twenty-six thousand, four hundred thirty-one".