13020203005 has 4 divisors (see below), whose sum is σ = 15624243612. Its totient is φ = 10416162400.

The previous prime is 13020203003. The next prime is 13020203047. The reversal of 13020203005 is 50030202031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50030202031 = 2657 ⋅18829583.

It can be written as a sum of positive squares in 2 ways, for example, as 8605530756 + 4414672249 = 92766^2 + 66443^2 .

It is not a de Polignac number, because 13020203005 - 2¹ = 13020203003 is a prime.

It is a super-2 number, since 2×13020203005² (a number of 21 digits) 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 13020203005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020203003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302020296 + ... + 1302020305.

It is an arithmetic number, because the mean of its divisors is an integer number (3906060903).

Almost surely, 2^13020203005 is an apocalyptic number.

It is an amenable number.

13020203005 is a deficient number, since it is larger than the sum of its proper divisors (2604040607).

13020203005 is an equidigital number, since it uses as much as digits as its factorization.

13020203005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604040606.

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 13020203005 its reverse (50030202031), we get a palindrome (63050405036).

The spelling of 13020203005 in words is "thirteen billion, twenty million, two hundred three thousand, five".