1242423301213 has 2 divisors, whose sum is σ = 1242423301214. Its totient is φ = 1242423301212.

The previous prime is 1242423301211. The next prime is 1242423301261. The reversal of 1242423301213 is 3121033242421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1239877796004 + 2545505209 = 1113498^2 + 50453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242423301213 - 2¹ = 1242423301211 is a prime.

Together with 1242423301211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242423301211) 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, 621211650606 + 621211650607.

It is an arithmetic number, because the mean of its divisors is an integer number (621211650607).

Almost surely, 2^{1242423301213} is an apocalyptic number.

It is an amenable number.

1242423301213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242423301213 is an equidigital number, since it uses as much as digits as its factorization.

1242423301213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1242423301213 its reverse (3121033242421), we get a palindrome (4363456543634).

The spelling of 1242423301213 in words is "one trillion, two hundred forty-two billion, four hundred twenty-three million, three hundred one thousand, two hundred thirteen".