1242523206863 has 2 divisors, whose sum is σ = 1242523206864. Its totient is φ = 1242523206862.

The previous prime is 1242523206857. The next prime is 1242523206907. The reversal of 1242523206863 is 3686023252421.

It is an a-pointer prime, because the next prime (1242523206907) can be obtained adding 1242523206863 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1242523206863 - 2³⁴ = 1225343337679 is a prime.

It is a super-2 number, since 2×1242523206863² (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 (1242523208863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621261603431 + 621261603432.

It is an arithmetic number, because the mean of its divisors is an integer number (621261603432).

Almost surely, 2^{1242523206863} is an apocalyptic number.

1242523206863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242523206863 is an equidigital number, since it uses as much as digits as its factorization.

1242523206863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 1242523206863 in words is "one trillion, two hundred forty-two billion, five hundred twenty-three million, two hundred six thousand, eight hundred sixty-three".