20310315110623 has 4 divisors (see below), whose sum is σ = 20567407707040. Its totient is φ = 20053222514208.

The previous prime is 20310315110581. The next prime is 20310315110627. The reversal of 20310315110623 is 32601151301302.

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 20310315110623 - 2³⁷ = 20172876157151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20310315110591 and 20310315110600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310315110627) 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, 128546298090 + ... + 128546298247.

It is an arithmetic number, because the mean of its divisors is an integer number (5141851926760).

Almost surely, 2^{20310315110623} is an apocalyptic number.

20310315110623 is a deficient number, since it is larger than the sum of its proper divisors (257092596417).

20310315110623 is an equidigital number, since it uses as much as digits as its factorization.

20310315110623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257092596416.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 20310315110623 its reverse (32601151301302), we get a palindrome (52911466411925).

The spelling of 20310315110623 in words is "twenty trillion, three hundred ten billion, three hundred fifteen million, one hundred ten thousand, six hundred twenty-three".