1235520002513 has 2 divisors, whose sum is σ = 1235520002514. Its totient is φ = 1235520002512.

The previous prime is 1235520002503. The next prime is 1235520002579. The reversal of 1235520002513 is 3152000255321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 760424112529 + 475095889984 = 872023^2 + 689272^2 .

It is a cyclic number.

It is not a de Polignac number, because 1235520002513 - 2⁶ = 1235520002449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1235520002503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617760001256 + 617760001257.

It is an arithmetic number, because the mean of its divisors is an integer number (617760001257).

Almost surely, 2^{1235520002513} is an apocalyptic number.

It is an amenable number.

1235520002513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235520002513 is an equidigital number, since it uses as much as digits as its factorization.

1235520002513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 1235520002513 its reverse (3152000255321), we get a palindrome (4387520257834).

The spelling of 1235520002513 in words is "one trillion, two hundred thirty-five billion, five hundred twenty million, two thousand, five hundred thirteen".