1243363123487 has 2 divisors, whose sum is σ = 1243363123488. Its totient is φ = 1243363123486.

The previous prime is 1243363123459. The next prime is 1243363123493. The reversal of 1243363123487 is 7843213633421.

It is a strong prime.

It is an emirp because it is prime and its reverse (7843213633421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1243363123487 is a prime.

It is a super-2 number, since 2×1243363123487² (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 (1243363123987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621681561743 + 621681561744.

It is an arithmetic number, because the mean of its divisors is an integer number (621681561744).

Almost surely, 2^{1243363123487} is an apocalyptic number.

1243363123487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243363123487 is an equidigital number, since it uses as much as digits as its factorization.

1243363123487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 47.

The spelling of 1243363123487 in words is "one trillion, two hundred forty-three billion, three hundred sixty-three million, one hundred twenty-three thousand, four hundred eighty-seven".