20302033013 has 4 divisors (see below), whose sum is σ = 20303877888. Its totient is φ = 20300188140.

The previous prime is 20302033009. The next prime is 20302033019. The reversal of 20302033013 is 31033020302.

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 20302033013 - 2² = 20302033009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20302032982 and 20302033000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302033019) 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, 905831 + ... + 927972.

It is an arithmetic number, because the mean of its divisors is an integer number (5075969472).

Almost surely, 2^20302033013 is an apocalyptic number.

It is an amenable number.

20302033013 is a deficient number, since it is larger than the sum of its proper divisors (1844875).

20302033013 is a wasteful number, since it uses less digits than its factorization.

20302033013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844874.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 20302033013 its reverse (31033020302), we get a palindrome (51335053315).

The spelling of 20302033013 in words is "twenty billion, three hundred two million, thirty-three thousand, thirteen".