20302103303213 has 8 divisors (see below), whose sum is σ = 21002226053400. Its totient is φ = 19601983901248.

The previous prime is 20302103303189. The next prime is 20302103303227. The reversal of 20302103303213 is 31230330120302.

It can be written as a sum of positive squares in 4 ways, for example, as 1224269222089 + 19077834081124 = 1106467^2 + 4367818^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20302103303213 - 2¹⁶ = 20302103237677 is a prime.

It is a super-2 number, since 2×20302103303213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302103383213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23154395 + ... + 24015207.

It is an arithmetic number, because the mean of its divisors is an integer number (2625278256675).

Almost surely, 2^{20302103303213} is an apocalyptic number.

It is an amenable number.

20302103303213 is a deficient number, since it is larger than the sum of its proper divisors (700122750187).

20302103303213 is an equidigital number, since it uses as much as digits as its factorization.

20302103303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674111.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20302103303213 its reverse (31230330120302), we get a palindrome (51532433423515).

The spelling of 20302103303213 in words is "twenty trillion, three hundred two billion, one hundred three million, three hundred three thousand, two hundred thirteen".