1345242131287 has 2 divisors, whose sum is σ = 1345242131288. Its totient is φ = 1345242131286.

The previous prime is 1345242131239. The next prime is 1345242131333. The reversal of 1345242131287 is 7821312425431.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7821312425431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1345242131287 - 2¹¹ = 1345242129239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345242131587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672621065643 + 672621065644.

It is an arithmetic number, because the mean of its divisors is an integer number (672621065644).

Almost surely, 2^{1345242131287} is an apocalyptic number.

1345242131287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345242131287 is an equidigital number, since it uses as much as digits as its factorization.

1345242131287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The spelling of 1345242131287 in words is "one trillion, three hundred forty-five billion, two hundred forty-two million, one hundred thirty-one thousand, two hundred eighty-seven".