1020430013 has 4 divisors (see below), whose sum is σ = 1020738240. Its totient is φ = 1020121788.

The previous prime is 1020430001. The next prime is 1020430027. The reversal of 1020430013 is 3100340201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1020430013 - 2¹⁰ = 1020428989 is a prime.

It is a super-2 number, since 2×1020430013² = 2082554822862360338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020430013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020430043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149093 + ... + 155786.

It is an arithmetic number, because the mean of its divisors is an integer number (255184560).

Almost surely, 2^1020430013 is an apocalyptic number.

It is an amenable number.

1020430013 is a deficient number, since it is larger than the sum of its proper divisors (308227).

1020430013 is an equidigital number, since it uses as much as digits as its factorization.

1020430013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308226.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1020430013 is about 31944.1702506107. The cubic root of 1020430013 is about 1006.7641474806.

Adding to 1020430013 its reverse (3100340201), we get a palindrome (4120770214).

The spelling of 1020430013 in words is "one billion, twenty million, four hundred thirty thousand, thirteen".