1242668719301 has 2 divisors, whose sum is σ = 1242668719302. Its totient is φ = 1242668719300.

The previous prime is 1242668719283. The next prime is 1242668719307. The reversal of 1242668719301 is 1039178662421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1237990022500 + 4678696801 = 1112650^2 + 68401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242668719301 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242668719301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242668719307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621334359650 + 621334359651.

It is an arithmetic number, because the mean of its divisors is an integer number (621334359651).

Almost surely, 2^{1242668719301} is an apocalyptic number.

It is an amenable number.

1242668719301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242668719301 is an equidigital number, since it uses as much as digits as its factorization.

1242668719301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 1242668719301 in words is "one trillion, two hundred forty-two billion, six hundred sixty-eight million, seven hundred nineteen thousand, three hundred one".