20030011013 has 8 divisors (see below), whose sum is σ = 20661202680. Its totient is φ = 19403547840.

The previous prime is 20030011003. The next prime is 20030011139. The reversal of 20030011013 is 31011003002.

It can be written as a sum of positive squares in 4 ways, for example, as 13943358724 + 6086652289 = 118082^2 + 78017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20030011013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20030010985 and 20030011003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030011003) 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 7 ways as a sum of consecutive naturals, for example, 1173518 + ... + 1190463.

It is an arithmetic number, because the mean of its divisors is an integer number (2582650335).

Almost surely, 2^20030011013 is an apocalyptic number.

It is an amenable number.

20030011013 is a deficient number, since it is larger than the sum of its proper divisors (631191667).

20030011013 is a wasteful number, since it uses less digits than its factorization.

20030011013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364247.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 20030011013 its reverse (31011003002), we get a palindrome (51041014015).

The spelling of 20030011013 in words is "twenty billion, thirty million, eleven thousand, thirteen".