1042513355539 has 2 divisors, whose sum is σ = 1042513355540. Its totient is φ = 1042513355538.

The previous prime is 1042513355501. The next prime is 1042513355581. The reversal of 1042513355539 is 9355533152401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1042513355539 - 2¹³ = 1042513347347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042513350539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521256677769 + 521256677770.

It is an arithmetic number, because the mean of its divisors is an integer number (521256677770).

Almost surely, 2^{1042513355539} is an apocalyptic number.

1042513355539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042513355539 is an equidigital number, since it uses as much as digits as its factorization.

1042513355539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215000, while the sum is 46.

The spelling of 1042513355539 in words is "one trillion, forty-two billion, five hundred thirteen million, three hundred fifty-five thousand, five hundred thirty-nine".