1242032515393 has 2 divisors, whose sum is σ = 1242032515394. Its totient is φ = 1242032515392.

The previous prime is 1242032515387. The next prime is 1242032515483. The reversal of 1242032515393 is 3935152302421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1039435303729 + 202597211664 = 1019527^2 + 450108^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242032515393 - 2⁹ = 1242032514881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242632515393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621016257696 + 621016257697.

It is an arithmetic number, because the mean of its divisors is an integer number (621016257697).

Almost surely, 2^{1242032515393} is an apocalyptic number.

It is an amenable number.

1242032515393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242032515393 is an equidigital number, since it uses as much as digits as its factorization.

1242032515393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 1242032515393 in words is "one trillion, two hundred forty-two billion, thirty-two million, five hundred fifteen thousand, three hundred ninety-three".