1331146568431 has 2 divisors, whose sum is σ = 1331146568432. Its totient is φ = 1331146568430.

The previous prime is 1331146568413. The next prime is 1331146568441. The reversal of 1331146568431 is 1348656411331.

Together with previous prime (1331146568413) 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 1331146568431 - 2⁷ = 1331146568303 is a prime.

It is a super-2 number, since 2×1331146568431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331146568441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665573284215 + 665573284216.

It is an arithmetic number, because the mean of its divisors is an integer number (665573284216).

Almost surely, 2^{1331146568431} is an apocalyptic number.

1331146568431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331146568431 is an equidigital number, since it uses as much as digits as its factorization.

1331146568431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The spelling of 1331146568431 in words is "one trillion, three hundred thirty-one billion, one hundred forty-six million, five hundred sixty-eight thousand, four hundred thirty-one".