1240502131579 has 2 divisors, whose sum is σ = 1240502131580. Its totient is φ = 1240502131578.

The previous prime is 1240502131553. The next prime is 1240502131607. The reversal of 1240502131579 is 9751312050421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240502131579 - 2¹⁹ = 1240501607291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240502134579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620251065789 + 620251065790.

It is an arithmetic number, because the mean of its divisors is an integer number (620251065790).

Almost surely, 2^{1240502131579} is an apocalyptic number.

1240502131579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240502131579 is an equidigital number, since it uses as much as digits as its factorization.

1240502131579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 1240502131579 in words is "one trillion, two hundred forty billion, five hundred two million, one hundred thirty-one thousand, five hundred seventy-nine".