10020503513 has 2 divisors, whose sum is σ = 10020503514. Its totient is φ = 10020503512.

The previous prime is 10020503509. The next prime is 10020503533. The reversal of 10020503513 is 31530502001.

It is an a-pointer prime, because the next prime (10020503533) can be obtained adding 10020503513 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6862962649 + 3157540864 = 82843^2 + 56192^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020503513 - 2² = 10020503509 is a prime.

It is not a weakly prime, because it can be changed into another prime (10020503533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010251756 + 5010251757.

It is an arithmetic number, because the mean of its divisors is an integer number (5010251757).

Almost surely, 2^10020503513 is an apocalyptic number.

It is an amenable number.

10020503513 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020503513 is an equidigital number, since it uses as much as digits as its factorization.

10020503513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 20.

The spelling of 10020503513 in words is "ten billion, twenty million, five hundred three thousand, five hundred thirteen".