1020073513 has 2 divisors, whose sum is σ = 1020073514. Its totient is φ = 1020073512.

The previous prime is 1020073511. The next prime is 1020073531. The reversal of 1020073513 is 3153700201.

1020073513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (1020073531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 972628969 + 47444544 = 31187^2 + 6888^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020073513 - 2¹ = 1020073511 is a prime.

It is a super-2 number, since 2×1020073513² = 2081099943848322338, which contains 22 as substring.

Together with 1020073511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1020073511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510036756 + 510036757.

It is an arithmetic number, because the mean of its divisors is an integer number (510036757).

Almost surely, 2^1020073513 is an apocalyptic number.

It is an amenable number.

1020073513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020073513 is an equidigital number, since it uses as much as digits as its factorization.

1020073513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 1020073513 is about 31938.5897152645. The cubic root of 1020073513 is about 1006.6468919384.

Adding to 1020073513 its reverse (3153700201), we get a palindrome (4173773714).

The spelling of 1020073513 in words is "one billion, twenty million, seventy-three thousand, five hundred thirteen".