20315305422635 has 4 divisors (see below), whose sum is σ = 24378366507168. Its totient is φ = 16252244338104.

The previous prime is 20315305422617. The next prime is 20315305422649. The reversal of 20315305422635 is 53622450351302.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20315305422635 - 2⁶ = 20315305422571 is a prime.

It is a super-3 number, since 3×20315305422635³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20315305422592 and 20315305422601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2031530542259 + ... + 2031530542268.

It is an arithmetic number, because the mean of its divisors is an integer number (6094591626792).

Almost surely, 2^{20315305422635} is an apocalyptic number.

20315305422635 is a deficient number, since it is larger than the sum of its proper divisors (4063061084533).

20315305422635 is an equidigital number, since it uses as much as digits as its factorization.

20315305422635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063061084532.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 20315305422635 its reverse (53622450351302), we get a palindrome (73937755773937).

The spelling of 20315305422635 in words is "twenty trillion, three hundred fifteen billion, three hundred five million, four hundred twenty-two thousand, six hundred thirty-five".