20320120003013 has 16 divisors (see below), whose sum is σ = 20527389868032. Its totient is φ = 20114146206000.

The previous prime is 20320120002971. The next prime is 20320120003087. The reversal of 20320120003013 is 31030002102302.

It is not a de Polignac number, because 20320120003013 - 2¹⁴ = 20320119986629 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 = 20320120002982 and 20320120003000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320120000013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31206698 + ... + 31851188.

It is an arithmetic number, because the mean of its divisors is an integer number (1282961866752).

Almost surely, 2^{20320120003013} is an apocalyptic number.

It is an amenable number.

20320120003013 is a deficient number, since it is larger than the sum of its proper divisors (207269865019).

20320120003013 is a wasteful number, since it uses less digits than its factorization.

20320120003013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645496.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20320120003013 its reverse (31030002102302), we get a palindrome (51350122105315).

The spelling of 20320120003013 in words is "twenty trillion, three hundred twenty billion, one hundred twenty million, three thousand, thirteen".