20413503000365 has 4 divisors (see below), whose sum is σ = 24496203600444. Its totient is φ = 16330802400288.

The previous prime is 20413503000349. The next prime is 20413503000367. The reversal of 20413503000365 is 56300030531402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14981629513321 + 5431873487044 = 3870611^2 + 2330638^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413503000365 - 2⁴ = 20413503000349 is a prime.

It is a super-2 number, since 2×20413503000365² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413503000367) 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, 2041350300032 + ... + 2041350300041.

It is an arithmetic number, because the mean of its divisors is an integer number (6124050900111).

Almost surely, 2^{20413503000365} is an apocalyptic number.

It is an amenable number.

20413503000365 is a deficient number, since it is larger than the sum of its proper divisors (4082700600079).

20413503000365 is an equidigital number, since it uses as much as digits as its factorization.

20413503000365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082700600078.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 20413503000365 its reverse (56300030531402), we get a palindrome (76713533531767).

The spelling of 20413503000365 in words is "twenty trillion, four hundred thirteen billion, five hundred three million, three hundred sixty-five", and thus it is an aban number.