20302313078365 has 24 divisors (see below), whose sum is σ = 25252062149160. Its totient is φ = 15667665530880.

The previous prime is 20302313078363. The next prime is 20302313078401. The reversal of 20302313078365 is 56387031320302.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 20074002081604 + 228310996761 = 4480402^2 + 477819^2 .

It is not a de Polignac number, because 20302313078365 - 2¹ = 20302313078363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302313078363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12822204 + ... + 14318293.

It is an arithmetic number, because the mean of its divisors is an integer number (1052169256215).

Almost surely, 2^{20302313078365} is an apocalyptic number.

It is an amenable number.

20302313078365 is a deficient number, since it is larger than the sum of its proper divisors (4949749070795).

20302313078365 is an equidigital number, since it uses as much as digits as its factorization.

20302313078365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27140673 (or 27140632 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 43.

Adding to 20302313078365 its reverse (56387031320302), we get a palindrome (76689344398667).

The spelling of 20302313078365 in words is "twenty trillion, three hundred two billion, three hundred thirteen million, seventy-eight thousand, three hundred sixty-five".