1242455050013 has 2 divisors, whose sum is σ = 1242455050014. Its totient is φ = 1242455050012.

The previous prime is 1242455049967. The next prime is 1242455050021. The reversal of 1242455050013 is 3100505542421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1237017757369 + 5437292644 = 1112213^2 + 73738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242455050013 - 2³⁸ = 967577143069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242455050813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621227525006 + 621227525007.

It is an arithmetic number, because the mean of its divisors is an integer number (621227525007).

Almost surely, 2^{1242455050013} is an apocalyptic number.

It is an amenable number.

1242455050013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242455050013 is an equidigital number, since it uses as much as digits as its factorization.

1242455050013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 1242455050013 in words is "one trillion, two hundred forty-two billion, four hundred fifty-five million, fifty thousand, thirteen".